2131256034 has 48 divisors (see below), whose sum is σ = 4981641912. Its totient is φ = 656008704.

The previous prime is 2131256009. The next prime is 2131256069. The reversal of 2131256034 is 4306521312.

2131256034 is a `hidden beast` number, since 2 + 1 + 31 + 25 + 603 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2108187225 + 23068809 = 45915^2 + 4803^2 .

It is a super-2 number, since 2×2131256034² = 9084504564922818312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2131255989 and 2131256007.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49489 + ... + 81924.

Almost surely, 2^2131256034 is an apocalyptic number.

2131256034 is an abundant number, since it is smaller than the sum of its proper divisors (2850385878).

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

2131256034 is a wasteful number, since it uses less digits than its factorization.

2131256034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131491 (or 131488 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2131256034 is about 46165.5286333862. The cubic root of 2131256034 is about 1286.9012082691.

Adding to 2131256034 its reverse (4306521312), we get a palindrome (6437777346).

The spelling of 2131256034 in words is "two billion, one hundred thirty-one million, two hundred fifty-six thousand, thirty-four".