31142221323032 has 16 divisors (see below), whose sum is σ = 58391833367400. Its totient is φ = 15571065758400.

The previous prime is 31142221323029. The next prime is 31142221323047. The reversal of 31142221323032 is 23032312224113.

It is a junction number, because it is equal to n+sod(n) for n = 31142221322986 and 31142221323004.

It is a congruent number.

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, 2568182 + ... + 8299397.

Almost surely, 2^{31142221323032} is an apocalyptic number.

It is an amenable number.

31142221323032 is a deficient number, since it is larger than the sum of its proper divisors (27249612044368).

31142221323032 is a wasteful number, since it uses less digits than its factorization.

31142221323032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11225786 (or 11225782 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 31142221323032 its reverse (23032312224113), we get a palindrome (54174533547145).

The spelling of 31142221323032 in words is "thirty-one trillion, one hundred forty-two billion, two hundred twenty-one million, three hundred twenty-three thousand, thirty-two".