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1231010330412 = 223831363390659
BaseRepresentation
bin10001111010011101111…
…011101111011100101100
311100200110020010010010110
4101322131323233130230
5130132102121033122
62341303543340020
7154636404106422
oct21723573573454
94320406103113
101231010330412
1143508326a335
1217a6b2a51610
138c112096045
144381cc0d112
152204c38690c
hex11e9deef72c

1231010330412 has 48 divisors (see below), whose sum is σ = 2907209450880. Its totient is φ = 405358752768.

The previous prime is 1231010330369. The next prime is 1231010330419. The reversal of 1231010330412 is 2140330101321.

It is a super-2 number, since 2×12310103304122 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1231010330419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13533139 + ... + 13623797.

It is an arithmetic number, because the mean of its divisors is an integer number (60566863560).

Almost surely, 21231010330412 is an apocalyptic number.

1231010330412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1231010330412 is an abundant number, since it is smaller than the sum of its proper divisors (1676199120468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231010330412 is a wasteful number, since it uses less digits than its factorization.

1231010330412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104382 (or 104380 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1231010330412 its reverse (2140330101321), we get a palindrome (3371340431733).

The spelling of 1231010330412 in words is "one trillion, two hundred thirty-one billion, ten million, three hundred thirty thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 83 166 249 332 498 996 13633 27266 40899 54532 81798 90659 163596 181318 271977 362636 543954 1087908 1131539 2263078 3394617 4526156 6789234 7524697 13578468 15049394 22574091 30098788 45148182 90296364 1235954147 2471908294 3707862441 4943816588 7415724882 14831449764 102584194201 205168388402 307752582603 410336776804 615505165206 1231010330412