31273631032 has 48 divisors (see below), whose sum is σ = 68293638000. Its totient is φ = 13386868992.

The previous prime is 31273630991. The next prime is 31273631033. The reversal of 31273631032 is 23013637213.

It is a junction number, because it is equal to n+sod(n) for n = 31273630985 and 31273631003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31273631033) 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 11 ways as a sum of consecutive naturals, for example, 281344 + ... + 376432.

It is an arithmetic number, because the mean of its divisors is an integer number (1422784125).

Almost surely, 2^31273631032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31273631032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34146819000).

31273631032 is an abundant number, since it is smaller than the sum of its proper divisors (37020006968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31273631032 is a wasteful number, since it uses less digits than its factorization.

31273631032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95948 (or 95937 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 31.

The spelling of 31273631032 in words is "thirty-one billion, two hundred seventy-three million, six hundred thirty-one thousand, thirty-two".