10123123131013 has 4 divisors (see below), whose sum is σ = 10130359103200. Its totient is φ = 10115887158828.

The previous prime is 10123123130951. The next prime is 10123123131041. The reversal of 10123123131013 is 31013132132101.

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 a de Polignac number, because none of the positive numbers 2^k-10123123131013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10123123131053) 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, 3617983995 + ... + 3617986792.

It is an arithmetic number, because the mean of its divisors is an integer number (2532589775800).

Almost surely, 2^{10123123131013} is an apocalyptic number.

It is an amenable number.

10123123131013 is a deficient number, since it is larger than the sum of its proper divisors (7235972187).

10123123131013 is an equidigital number, since it uses as much as digits as its factorization.

10123123131013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7235972186.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 10123123131013 its reverse (31013132132101), we get a palindrome (41136255263114).

The spelling of 10123123131013 in words is "ten trillion, one hundred twenty-three billion, one hundred twenty-three million, one hundred thirty-one thousand, thirteen".