31201332102 has 48 divisors (see below), whose sum is σ = 69478709040. Its totient is φ = 10112250816.

The previous prime is 31201332091. The next prime is 31201332103. The reversal of 31201332102 is 20123310213.

31201332102 is a `hidden beast` number, since 31 + 201 + 332 + 102 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31201332103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 978649 + ... + 1010027.

It is an arithmetic number, because the mean of its divisors is an integer number (1447473105).

Almost surely, 2^31201332102 is an apocalyptic number.

31201332102 is an abundant number, since it is smaller than the sum of its proper divisors (38277376938).

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

31201332102 is a wasteful number, since it uses less digits than its factorization.

31201332102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32917 (or 32914 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 31201332102 its reverse (20123310213), we get a palindrome (51324642315).

The spelling of 31201332102 in words is "thirty-one billion, two hundred one million, three hundred thirty-two thousand, one hundred two".