131123133100 has 36 divisors (see below), whose sum is σ = 284613511000. Its totient is φ = 52435186560.

The previous prime is 131123133091. The next prime is 131123133103. The reversal of 131123133100 is 1331321131.

It is a super-2 number, since 2×131123133100² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131123133103) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 202951 + ... + 550849.

Almost surely, 2^131123133100 is an apocalyptic number.

131123133100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131123133100 is an abundant number, since it is smaller than the sum of its proper divisors (153490377900).

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

131123133100 is a wasteful number, since it uses less digits than its factorization.

131123133100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351682 (or 351675 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 131123133100 its reverse (1331321131), we get a palindrome (132454454231).

The spelling of 131123133100 in words is "one hundred thirty-one billion, one hundred twenty-three million, one hundred thirty-three thousand, one hundred".