31402031300 has 18 divisors (see below), whose sum is σ = 68142408138. Its totient is φ = 12560812480.

The previous prime is 31402031299. The next prime is 31402031317. The reversal of 31402031300 is 313020413.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4527674944 + 26874356356 = 67288^2 + 163934^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 157010057 + ... + 157010256.

It is an arithmetic number, because the mean of its divisors is an integer number (3785689341).

Almost surely, 2^31402031300 is an apocalyptic number.

It is an amenable number.

31402031300 is an abundant number, since it is smaller than the sum of its proper divisors (36740376838).

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

31402031300 is a wasteful number, since it uses less digits than its factorization.

31402031300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314020327 (or 314020320 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 31402031300 its reverse (313020413), we get a palindrome (31715051713).

The spelling of 31402031300 in words is "thirty-one billion, four hundred two million, thirty-one thousand, three hundred".