131202123100 has 72 divisors (see below), whose sum is σ = 300305779200. Its totient is φ = 49617086400.

The previous prime is 131202123071. The next prime is 131202123131. The reversal of 131202123100 is 1321202131.

It is a super-2 number, since 2×131202123100² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 862581 + ... + 1003219.

It is an arithmetic number, because the mean of its divisors is an integer number (4170913600).

Almost surely, 2^131202123100 is an apocalyptic number.

131202123100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131202123100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150152889600).

131202123100 is an abundant number, since it is smaller than the sum of its proper divisors (169103656100).

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

131202123100 is a wasteful number, since it uses less digits than its factorization.

131202123100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141163 (or 141156 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 131202123100 its reverse (1321202131), we get a palindrome (132523325231).

The spelling of 131202123100 in words is "one hundred thirty-one billion, two hundred two million, one hundred twenty-three thousand, one hundred".