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10123311131 = 191637325477
BaseRepresentation
bin10010110110110010…
…10111100000011011
3222010111210111012022
421123121113200123
5131213031424011
64352305405055
7505602503423
oct113331274033
928114714168
1010123311131
11432538853a
121b6633978b
13c5440353b
146c06a1483
153e3b198db
hex25b65781b

10123311131 has 8 divisors (see below), whose sum is σ = 10662659280. Its totient is φ = 9584617248.

The previous prime is 10123311127. The next prime is 10123311157. The reversal of 10123311131 is 13111332101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10123311131 - 22 = 10123311127 is a prime.

It is a super-2 number, since 2×101233111312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10123311031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131636 + ... + 193841.

It is an arithmetic number, because the mean of its divisors is an integer number (1332832410).

Almost surely, 210123311131 is an apocalyptic number.

10123311131 is a deficient number, since it is larger than the sum of its proper divisors (539348149).

10123311131 is a wasteful number, since it uses less digits than its factorization.

10123311131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327133.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 10123311131 its reverse (13111332101), we get a palindrome (23234643232).

The spelling of 10123311131 in words is "ten billion, one hundred twenty-three million, three hundred eleven thousand, one hundred thirty-one".

Divisors: 1 19 1637 31103 325477 6184063 532805849 10123311131