31402323032 has 16 divisors (see below), whose sum is σ = 59400413640. Its totient is φ = 15562212736.

The previous prime is 31402322981. The next prime is 31402323037. The reversal of 31402323032 is 23032320413.

It is a super-2 number, since 2×31402323032² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31402322989 and 31402323007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31402323037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17367638 + ... + 17369445.

Almost surely, 2^31402323032 is an apocalyptic number.

It is an amenable number.

31402323032 is a deficient number, since it is larger than the sum of its proper divisors (27998090608).

31402323032 is a wasteful number, since it uses less digits than its factorization.

31402323032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34737202 (or 34737198 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 31402323032 its reverse (23032320413), we get a palindrome (54434643445).

The spelling of 31402323032 in words is "thirty-one billion, four hundred two million, three hundred twenty-three thousand, thirty-two".