1345631025971 has 2 divisors, whose sum is σ = 1345631025972. Its totient is φ = 1345631025970.

The previous prime is 1345631025913. The next prime is 1345631026081. The reversal of 1345631025971 is 1795201365431.

It is a weak prime.

It is an emirp because it is prime and its reverse (1795201365431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1345631025971 - 2³⁴ = 1328451156787 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1345631025901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672815512985 + 672815512986.

It is an arithmetic number, because the mean of its divisors is an integer number (672815512986).

Almost surely, 2^{1345631025971} is an apocalyptic number.

1345631025971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345631025971 is an equidigital number, since it uses as much as digits as its factorization.

1345631025971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 680400, while the sum is 47.

The spelling of 1345631025971 in words is "one trillion, three hundred forty-five billion, six hundred thirty-one million, twenty-five thousand, nine hundred seventy-one".