2315143131 has 24 divisors (see below), whose sum is σ = 3746962944. Its totient is φ = 1265418000.

The previous prime is 2315143121. The next prime is 2315143133. The reversal of 2315143131 is 1313415132.

It is not a de Polignac number, because 2315143131 - 2⁵ = 2315143099 is a prime.

It is a super-2 number, since 2×2315143131² = 10719775434032966322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2315143133) 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, 338995 + ... + 345756.

It is an arithmetic number, because the mean of its divisors is an integer number (156123456).

Almost surely, 2^2315143131 is an apocalyptic number.

2315143131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2315143131 is a deficient number, since it is larger than the sum of its proper divisors (1431819813).

2315143131 is a wasteful number, since it uses less digits than its factorization.

2315143131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684791 (or 684784 counting only the distinct ones).

The product of its digits is 1080, while the sum is 24.

The square root of 2315143131 is about 48115.9342733777. The cubic root of 2315143131 is about 1322.8967473519.

Adding to 2315143131 its reverse (1313415132), we get a palindrome (3628558263).

The spelling of 2315143131 in words is "two billion, three hundred fifteen million, one hundred forty-three thousand, one hundred thirty-one".