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12312020113 = 59499541773
BaseRepresentation
bin10110111011101101…
…01000010010010001
31011210001020102110221
423131312220102101
5200203334120423
65353413153041
7614050305241
oct133566502221
934701212427
1012312020113
1152488a5a38
12247732b781
1312129b0803
1484b23db21
154c0d55e5d
hex2ddda8491

12312020113 has 16 divisors (see below), whose sum is σ = 12585240000. Its totient is φ = 12041161920.

The previous prime is 12312020099. The next prime is 12312020131. The reversal of 12312020113 is 31102021321.

12312020113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12312020113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12312020173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15927195 + ... + 15927967.

It is an arithmetic number, because the mean of its divisors is an integer number (786577500).

Almost surely, 212312020113 is an apocalyptic number.

It is an amenable number.

12312020113 is a deficient number, since it is larger than the sum of its proper divisors (273219887).

12312020113 is an equidigital number, since it uses as much as digits as its factorization.

12312020113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12312020113 its reverse (31102021321), we get a palindrome (43414041434).

The spelling of 12312020113 in words is "twelve billion, three hundred twelve million, twenty thousand, one hundred thirteen".

Divisors: 1 59 499 541 773 29441 31919 45607 269959 385727 418193 15927581 22757893 24673387 208678307 12312020113