2631115123 has 12 divisors (see below), whose sum is σ = 3296123040. Its totient is φ = 2081760912.

The previous prime is 2631115063. The next prime is 2631115133. The reversal of 2631115123 is 3215111362.

It is a happy number.

It is not a de Polignac number, because 2631115123 - 2¹⁷ = 2630984051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2631115133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2064603 + ... + 2065876.

It is an arithmetic number, because the mean of its divisors is an integer number (274676920).

Almost surely, 2^2631115123 is an apocalyptic number.

2631115123 is a deficient number, since it is larger than the sum of its proper divisors (665007917).

2631115123 is a wasteful number, since it uses less digits than its factorization.

2631115123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4130506 (or 4130499 counting only the distinct ones).

The product of its digits is 1080, while the sum is 25.

The square root of 2631115123 is about 51294.3966043076. The cubic root of 2631115123 is about 1380.5324422707.

Adding to 2631115123 its reverse (3215111362), we get a palindrome (5846226485).

The spelling of 2631115123 in words is "two billion, six hundred thirty-one million, one hundred fifteen thousand, one hundred twenty-three".