31100023133300 has 36 divisors (see below), whose sum is σ = 73622236583616. Its totient is φ = 11309099320800.

The previous prime is 31100023133243. The next prime is 31100023133303. The reversal of 31100023133300 is 333132000113.

It is a super-2 number, since 2×31100023133300² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31100023133303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14136373052 + ... + 14136375251.

Almost surely, 2^{31100023133300} is an apocalyptic number.

It is an amenable number.

31100023133300 is an abundant number, since it is smaller than the sum of its proper divisors (42522213450316).

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

31100023133300 is a wasteful number, since it uses less digits than its factorization.

31100023133300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28272748328 (or 28272748321 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 31100023133300 its reverse (333132000113), we get a palindrome (31433155133413).

The spelling of 31100023133300 in words is "thirty-one trillion, one hundred billion, twenty-three million, one hundred thirty-three thousand, three hundred".