31420506140025 has 48 divisors (see below), whose sum is σ = 54708109141440. Its totient is φ = 15868248883200.

The previous prime is 31420506140011. The next prime is 31420506140039. The reversal of 31420506140025 is 52004160502413.

It is an interprime number because it is at equal distance from previous prime (31420506140011) and next prime (31420506140039).

It is not a de Polignac number, because 31420506140025 - 2⁸ = 31420506139769 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2052616 + ... + 8188665.

It is an arithmetic number, because the mean of its divisors is an integer number (1139752273780).

Almost surely, 2^{31420506140025} is an apocalyptic number.

It is an amenable number.

31420506140025 is a deficient number, since it is larger than the sum of its proper divisors (23287603001415).

31420506140025 is a wasteful number, since it uses less digits than its factorization.

31420506140025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10243466 (or 10243461 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 31420506140025 its reverse (52004160502413), we get a palindrome (83424666642438).

The spelling of 31420506140025 in words is "thirty-one trillion, four hundred twenty billion, five hundred six million, one hundred forty thousand, twenty-five".