31113303432 has 32 divisors (see below), whose sum is σ = 77790814080. Its totient is φ = 10370093760.

The previous prime is 31113303379. The next prime is 31113303437. The reversal of 31113303432 is 23430331113.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (31113303437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214158 + ... + 328770.

It is an arithmetic number, because the mean of its divisors is an integer number (2430962940).

Almost surely, 2^31113303432 is an apocalyptic number.

It is an amenable number.

31113303432 is an abundant number, since it is smaller than the sum of its proper divisors (46677510648).

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

31113303432 is a wasteful number, since it uses less digits than its factorization.

31113303432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125933 (or 125929 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 31113303432 its reverse (23430331113), we get a palindrome (54543634545).

The spelling of 31113303432 in words is "thirty-one billion, one hundred thirteen million, three hundred three thousand, four hundred thirty-two".