2311329551 has 12 divisors (see below), whose sum is σ = 2417568504. Its totient is φ = 2209452000.

The previous prime is 2311329529. The next prime is 2311329557. The reversal of 2311329551 is 1559231132.

It is a de Polignac number, because none of the positive numbers 2^k-2311329551 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 (2311329557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71336 + ... + 98546.

It is an arithmetic number, because the mean of its divisors is an integer number (201464042).

Almost surely, 2^2311329551 is an apocalyptic number.

2311329551 is a deficient number, since it is larger than the sum of its proper divisors (106238953).

2311329551 is a wasteful number, since it uses less digits than its factorization.

2311329551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27370 (or 27341 counting only the distinct ones).

The product of its digits is 8100, while the sum is 32.

The square root of 2311329551 is about 48076.2888646784. The cubic root of 2311329551 is about 1322.1699751235.

The spelling of 2311329551 in words is "two billion, three hundred eleven million, three hundred twenty-nine thousand, five hundred fifty-one".