31453210132 has 6 divisors (see below), whose sum is σ = 55043117738. Its totient is φ = 15726605064.

The previous prime is 31453210091. The next prime is 31453210169. The reversal of 31453210132 is 23101235413.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26255665296 + 5197544836 = 162036^2 + 72094^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31453210097 and 31453210106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3931651263 + ... + 3931651270.

Almost surely, 2^31453210132 is an apocalyptic number.

It is an amenable number.

31453210132 is a deficient number, since it is larger than the sum of its proper divisors (23589907606).

31453210132 is a wasteful number, since it uses less digits than its factorization.

31453210132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7863302537 (or 7863302535 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 31453210132 its reverse (23101235413), we get a palindrome (54554445545).

The spelling of 31453210132 in words is "thirty-one billion, four hundred fifty-three million, two hundred ten thousand, one hundred thirty-two".