400512546131 has 2 divisors, whose sum is σ = 400512546132. Its totient is φ = 400512546130.

The previous prime is 400512546127. The next prime is 400512546169. The reversal of 400512546131 is 131645215004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400512546131 - 2² = 400512546127 is a prime.

It is a super-2 number, since 2×400512546131² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (400512546121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200256273065 + 200256273066.

It is an arithmetic number, because the mean of its divisors is an integer number (200256273066).

Almost surely, 2^400512546131 is an apocalyptic number.

400512546131 is a deficient number, since it is larger than the sum of its proper divisors (1).

400512546131 is an equidigital number, since it uses as much as digits as its factorization.

400512546131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 400512546131 in words is "four hundred billion, five hundred twelve million, five hundred forty-six thousand, one hundred thirty-one".