31235340325 has 36 divisors (see below), whose sum is σ = 47014356960. Its totient is φ = 20487260640.

The previous prime is 31235340317. The next prime is 31235340361. The reversal of 31235340325 is 52304353213.

It is not a de Polignac number, because 31235340325 - 2³ = 31235340317 is a prime.

It is a super-2 number, since 2×31235340325² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 526135 + ... + 582484.

It is an arithmetic number, because the mean of its divisors is an integer number (1305954360).

Almost surely, 2^31235340325 is an apocalyptic number.

31235340325 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31235340325 is a deficient number, since it is larger than the sum of its proper divisors (15779016635).

31235340325 is a wasteful number, since it uses less digits than its factorization.

31235340325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108666 (or 1108654 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 31235340325 its reverse (52304353213), we get a palindrome (83539693538).

The spelling of 31235340325 in words is "thirty-one billion, two hundred thirty-five million, three hundred forty thousand, three hundred twenty-five".