31232101425 has 72 divisors (see below), whose sum is σ = 60165586656. Its totient is φ = 14254248960.

The previous prime is 31232101379. The next prime is 31232101441. The reversal of 31232101425 is 52410123213.

It is not a de Polignac number, because 31232101425 - 2¹² = 31232097329 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31232101395 and 31232101404.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2356417 + ... + 2369633.

It is an arithmetic number, because the mean of its divisors is an integer number (835633148).

Almost surely, 2^31232101425 is an apocalyptic number.

31232101425 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31232101425 is a deficient number, since it is larger than the sum of its proper divisors (28933485231).

31232101425 is a wasteful number, since it uses less digits than its factorization.

31232101425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13887 (or 13875 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 31232101425 its reverse (52410123213), we get a palindrome (83642224638).

The spelling of 31232101425 in words is "thirty-one billion, two hundred thirty-two million, one hundred one thousand, four hundred twenty-five".