31225489683 has 4 divisors (see below), whose sum is σ = 41633986248. Its totient is φ = 20816993120.

The previous prime is 31225489681. The next prime is 31225489693. The reversal of 31225489683 is 38698452213.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31225489683 - 2¹ = 31225489681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31225489681) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5204248278 + ... + 5204248283.

It is an arithmetic number, because the mean of its divisors is an integer number (10408496562).

Almost surely, 2^31225489683 is an apocalyptic number.

31225489683 is a deficient number, since it is larger than the sum of its proper divisors (10408496565).

31225489683 is a wasteful number, since it uses less digits than its factorization.

31225489683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10408496564.

The product of its digits is 2488320, while the sum is 51.

The spelling of 31225489683 in words is "thirty-one billion, two hundred twenty-five million, four hundred eighty-nine thousand, six hundred eighty-three".