1131202120100 has 72 divisors (see below), whose sum is σ = 2643841616640. Its totient is φ = 417625764480.

The previous prime is 1131202119973. The next prime is 1131202120159. The reversal of 1131202120100 is 10212021311.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12198509 + ... + 12290891.

Almost surely, 2^{1131202120100} is an apocalyptic number.

1131202120100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131202120100 is an abundant number, since it is smaller than the sum of its proper divisors (1512639496540).

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

1131202120100 is a wasteful number, since it uses less digits than its factorization.

1131202120100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101829 (or 101822 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1131202120100 its reverse (10212021311), we get a palindrome (1141414141411).

The spelling of 1131202120100 in words is "one trillion, one hundred thirty-one billion, two hundred two million, one hundred twenty thousand, one hundred".