31023020010100 has 18 divisors (see below), whose sum is σ = 67319953422134. Its totient is φ = 12409208004000.

The previous prime is 31023020010071. The next prime is 31023020010127. The reversal of 31023020010100 is 101002032013.

It can be written as a sum of positive squares in 3 ways, for example, as 2910395056144 + 28112624953956 = 1705988^2 + 5302134^2 .

It is a congruent number.

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, 155115099951 + ... + 155115100150.

Almost surely, 2^{31023020010100} is an apocalyptic number.

It is an amenable number.

31023020010100 is an abundant number, since it is smaller than the sum of its proper divisors (36296933412034).

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

31023020010100 is a wasteful number, since it uses less digits than its factorization.

31023020010100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310230200115 (or 310230200108 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 31023020010100 its reverse (101002032013), we get a palindrome (31124022042113).

The spelling of 31023020010100 in words is "thirty-one trillion, twenty-three billion, twenty million, ten thousand, one hundred".