2311203240120 has 64 divisors (see below), whose sum is σ = 6975128401920. Its totient is φ = 612630314624.

The previous prime is 2311203240113. The next prime is 2311203240149. The reversal of 2311203240120 is 210423021132.

It is a super-2 number, since 2×2311203240120² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57644712 + ... + 57684791.

It is an arithmetic number, because the mean of its divisors is an integer number (108986381280).

Almost surely, 2^{2311203240120} is an apocalyptic number.

2311203240120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2311203240120 is an abundant number, since it is smaller than the sum of its proper divisors (4663925161800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2311203240120 is a wasteful number, since it uses less digits than its factorization.

2311203240120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115329684 (or 115329680 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 2311203240120 its reverse (210423021132), we get a palindrome (2521626261252).

The spelling of 2311203240120 in words is "two trillion, three hundred eleven billion, two hundred three million, two hundred forty thousand, one hundred twenty".