2311245213021 has 24 divisors (see below), whose sum is σ = 3342503923200. Its totient is φ = 1538966800800.

The previous prime is 2311245212933. The next prime is 2311245213023. The reversal of 2311245213021 is 1203125421132.

It is a happy number.

2311245213021 is a `hidden beast` number, since 2 + 3 + 112 + 4 + 521 + 3 + 0 + 21 = 666.

It is not a de Polignac number, because 2311245213021 - 2⁷ = 2311245212893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311245213023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49842955 + ... + 49889303.

It is an arithmetic number, because the mean of its divisors is an integer number (139270996800).

Almost surely, 2^{2311245213021} is an apocalyptic number.

It is an amenable number.

2311245213021 is a deficient number, since it is larger than the sum of its proper divisors (1031258710179).

2311245213021 is a wasteful number, since it uses less digits than its factorization.

2311245213021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52937 (or 52934 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The spelling of 2311245213021 in words is "two trillion, three hundred eleven billion, two hundred forty-five million, two hundred thirteen thousand, twenty-one".