31122323432 has 16 divisors (see below), whose sum is σ = 58451460900. Its totient is φ = 15535267200.

The previous prime is 31122323411. The next prime is 31122323447. The reversal of 31122323432 is 23432322113.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26776085956 + 4346237476 = 163634^2 + 65926^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3231707 + ... + 3241322.

Almost surely, 2^31122323432 is an apocalyptic number.

It is an amenable number.

31122323432 is a deficient number, since it is larger than the sum of its proper divisors (27329137468).

31122323432 is a wasteful number, since it uses less digits than its factorization.

31122323432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6473636 (or 6473632 counting only the distinct ones).

The product of its digits is 5184, while the sum is 26.

Adding to 31122323432 its reverse (23432322113), we get a palindrome (54554645545).

The spelling of 31122323432 in words is "thirty-one billion, one hundred twenty-two million, three hundred twenty-three thousand, four hundred thirty-two".