1371435031971 has 40 divisors (see below), whose sum is σ = 2126998372224. Its totient is φ = 879682083840.

The previous prime is 1371435031943. The next prime is 1371435031991. The reversal of 1371435031971 is 1791305341731.

1371435031971 is a `hidden beast` number, since 1 + 3 + 71 + 4 + 3 + 503 + 1 + 9 + 71 = 666.

It is not a de Polignac number, because 1371435031971 - 2²¹ = 1371432934819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1371435031991) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1144126 + ... + 2012931.

Almost surely, 2^{1371435031971} is an apocalyptic number.

1371435031971 is a deficient number, since it is larger than the sum of its proper divisors (755563340253).

1371435031971 is a wasteful number, since it uses less digits than its factorization.

1371435031971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3157273 (or 3157264 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The spelling of 1371435031971 in words is "one trillion, three hundred seventy-one billion, four hundred thirty-five million, thirty-one thousand, nine hundred seventy-one".