2311020013123 has 8 divisors (see below), whose sum is σ = 2358197226000. Its totient is φ = 2263975135968.

The previous prime is 2311020013117. The next prime is 2311020013193. The reversal of 2311020013123 is 3213100201132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2311020013123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2311020013123.

It is not an unprimeable number, because it can be changed into a prime (2311020013193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33048648 + ... + 33118501.

It is an arithmetic number, because the mean of its divisors is an integer number (294774653250).

Almost surely, 2^{2311020013123} is an apocalyptic number.

2311020013123 is a deficient number, since it is larger than the sum of its proper divisors (47177212877).

2311020013123 is an equidigital number, since it uses as much as digits as its factorization.

2311020013123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66167861.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 2311020013123 its reverse (3213100201132), we get a palindrome (5524120214255).

The spelling of 2311020013123 in words is "two trillion, three hundred eleven billion, twenty million, thirteen thousand, one hundred twenty-three".