100131240550 has 24 divisors (see below), whose sum is σ = 203175391032. Its totient is φ = 36411360000.

The previous prime is 100131240523. The next prime is 100131240553. The reversal of 100131240550 is 55042131001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100131240553) 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, 91027851 + ... + 91028950.

It is an arithmetic number, because the mean of its divisors is an integer number (8465641293).

Almost surely, 2^100131240550 is an apocalyptic number.

100131240550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100131240550 is an abundant number, since it is smaller than the sum of its proper divisors (103044150482).

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

100131240550 is a wasteful number, since it uses less digits than its factorization.

100131240550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182056824 (or 182056819 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 100131240550 its reverse (55042131001), we get a palindrome (155173371551).

The spelling of 100131240550 in words is "one hundred billion, one hundred thirty-one million, two hundred forty thousand, five hundred fifty".