2311313151 has 32 divisors (see below), whose sum is σ = 3632493568. Its totient is φ = 1279618560.

The previous prime is 2311313129. The next prime is 2311313203. The reversal of 2311313151 is 1513131132.

It is not a de Polignac number, because 2311313151 - 2¹⁵ = 2311280383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311313111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 181086 + ... + 193428.

It is an arithmetic number, because the mean of its divisors is an integer number (113515424).

Almost surely, 2^2311313151 is an apocalyptic number.

2311313151 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2311313151 is a deficient number, since it is larger than the sum of its proper divisors (1321180417).

2311313151 is a wasteful number, since it uses less digits than its factorization.

2311313151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12631.

The product of its digits is 270, while the sum is 21.

The square root of 2311313151 is about 48076.1183021258. The cubic root of 2311313151 is about 1322.1668479712.

Adding to 2311313151 its reverse (1513131132), we get a palindrome (3824444283).

The spelling of 2311313151 in words is "two billion, three hundred eleven million, three hundred thirteen thousand, one hundred fifty-one".