31020223002100 has 36 divisors (see below), whose sum is σ = 70856719914400. Its totient is φ = 11755031873760.

The previous prime is 31020223002079. The next prime is 31020223002143. The reversal of 31020223002100 is 120032202013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8163214680 + ... + 8163218479.

Almost surely, 2^{31020223002100} is an apocalyptic number.

It is an amenable number.

31020223002100 is an abundant number, since it is smaller than the sum of its proper divisors (39836496912300).

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

31020223002100 is a wasteful number, since it uses less digits than its factorization.

31020223002100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16326433192 (or 16326433185 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 31020223002100 its reverse (120032202013), we get a palindrome (31140255204113).

The spelling of 31020223002100 in words is "thirty-one trillion, twenty billion, two hundred twenty-three million, two thousand, one hundred".