123112123021113 has 4 divisors (see below), whose sum is σ = 164149497361488. Its totient is φ = 82074748680740.

The previous prime is 123112123021079. The next prime is 123112123021127. The reversal of 123112123021113 is 311120321211321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123112123021113 - 2⁶ = 123112123021049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123112123021163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20518687170183 + ... + 20518687170188.

It is an arithmetic number, because the mean of its divisors is an integer number (41037374340372).

Almost surely, 2^{123112123021113} is an apocalyptic number.

It is an amenable number.

123112123021113 is a deficient number, since it is larger than the sum of its proper divisors (41037374340375).

123112123021113 is an equidigital number, since it uses as much as digits as its factorization.

123112123021113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41037374340374.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 123112123021113 its reverse (311120321211321), we get a palindrome (434232444232434).

The spelling of 123112123021113 in words is "one hundred twenty-three trillion, one hundred twelve billion, one hundred twenty-three million, twenty-one thousand, one hundred thirteen".