12101235913 has 16 divisors (see below), whose sum is σ = 13795024320. Its totient is φ = 10534353984.

The previous prime is 12101235899. The next prime is 12101235931. The reversal of 12101235913 is 31953210121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12101235913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12101235973) 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, 357031 + ... + 389452.

It is an arithmetic number, because the mean of its divisors is an integer number (862189020).

Almost surely, 2^12101235913 is an apocalyptic number.

12101235913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12101235913 is a deficient number, since it is larger than the sum of its proper divisors (1693788407).

12101235913 is a wasteful number, since it uses less digits than its factorization.

12101235913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746568.

The product of its (nonzero) digits is 1620, while the sum is 28.

The spelling of 12101235913 in words is "twelve billion, one hundred one million, two hundred thirty-five thousand, nine hundred thirteen".