31020002200100 has 18 divisors (see below), whose sum is σ = 67313404774434. Its totient is φ = 12408000880000.

The previous prime is 31020002200049. The next prime is 31020002200139. The reversal of 31020002200100 is 100220002013.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2078464289344 + 28941537910756 = 1441688^2 + 5379734^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 155100010901 + ... + 155100011100.

Almost surely, 2^{31020002200100} is an apocalyptic number.

It is an amenable number.

31020002200100 is an abundant number, since it is smaller than the sum of its proper divisors (36293402574334).

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

31020002200100 is a wasteful number, since it uses less digits than its factorization.

31020002200100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310200022015 (or 310200022008 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 31020002200100 its reverse (100220002013), we get a palindrome (31120222202113).

The spelling of 31020002200100 in words is "thirty-one trillion, twenty billion, two million, two hundred thousand, one hundred".