31323112302100 has 72 divisors (see below), whose sum is σ = 68020888634496. Its totient is φ = 12520079520000.

The previous prime is 31323112302089. The next prime is 31323112302103. The reversal of 31323112302100 is 120321132313.

It is a super-2 number, since 2×31323112302100² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31323112302103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1946615055 + ... + 1946631145.

It is an arithmetic number, because the mean of its divisors is an integer number (944734564368).

Almost surely, 2^{31323112302100} is an apocalyptic number.

It is an amenable number.

31323112302100 is an abundant number, since it is smaller than the sum of its proper divisors (36697776332396).

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

31323112302100 is a wasteful number, since it uses less digits than its factorization.

31323112302100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29137 (or 29130 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 31323112302100 its reverse (120321132313), we get a palindrome (31443433434413).

The spelling of 31323112302100 in words is "thirty-one trillion, three hundred twenty-three billion, one hundred twelve million, three hundred two thousand, one hundred".