201031320101100 has 72 divisors (see below), whose sum is σ = 581665417520208. Its totient is φ = 53606988153600.

The previous prime is 201031320101099. The next prime is 201031320101137. The reversal of 201031320101100 is 1101023130102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 201031320101100.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3314590 + ... + 20323610.

Almost surely, 2^{201031320101100} is an apocalyptic number.

201031320101100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201031320101100 is an abundant number, since it is smaller than the sum of its proper divisors (380634097419108).

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

201031320101100 is a wasteful number, since it uses less digits than its factorization.

201031320101100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17048435 (or 17048428 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 201031320101100 its reverse (1101023130102), we get a palindrome (202132343231202).

The spelling of 201031320101100 in words is "two hundred one trillion, thirty-one billion, three hundred twenty million, one hundred one thousand, one hundred".