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20123130131310 = 2351645314076867
BaseRepresentation
bin1001001001101010010000…
…00001011111001101101110
32122020202022112112021002110
410210311020001133031232
510114144132303200220
6110444234404104450
74144563631615353
oct444651001371556
978222275467073
1020123130131310
116459198394138
12230bbb7695126
13b2c7abb15abb
144d7d711a262a
1524d6aea37be0
hex124d4805f36e

20123130131310 has 32 divisors (see below), whose sum is σ = 48295817695872. Its totient is φ = 5366134103840.

The previous prime is 20123130131297. The next prime is 20123130131311. The reversal of 20123130131310 is 1313103132102.

It is a happy number.

It is a super-2 number, since 2×201231301313102 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123130131311) 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, 2897497 + ... + 6974363.

It is an arithmetic number, because the mean of its divisors is an integer number (1509244302996).

Almost surely, 220123130131310 is an apocalyptic number.

20123130131310 is an abundant number, since it is smaller than the sum of its proper divisors (28172687564562).

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

20123130131310 is a wasteful number, since it uses less digits than its factorization.

20123130131310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4241408.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 20123130131310 its reverse (1313103132102), we get a palindrome (21436233263412).

The spelling of 20123130131310 in words is "twenty trillion, one hundred twenty-three billion, one hundred thirty million, one hundred thirty-one thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 30 164531 329062 493593 822655 987186 1645310 2467965 4076867 4935930 8153734 12230601 20384335 24461202 40768670 61153005 122306010 670771004377 1341542008754 2012313013131 3353855021885 4024626026262 6707710043770 10061565065655 20123130131310