131121002130 has 64 divisors (see below), whose sum is σ = 318946940928. Its totient is φ = 34493883840.

The previous prime is 131121002123. The next prime is 131121002147. The reversal of 131121002130 is 31200121131.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1682487 + ... + 1758693.

It is an arithmetic number, because the mean of its divisors is an integer number (4983545952).

Almost surely, 2^131121002130 is an apocalyptic number.

131121002130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131121002130 is an abundant number, since it is smaller than the sum of its proper divisors (187825938798).

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

131121002130 is a wasteful number, since it uses less digits than its factorization.

131121002130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76991.

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

Adding to 131121002130 its reverse (31200121131), we get a palindrome (162321123261).

The spelling of 131121002130 in words is "one hundred thirty-one billion, one hundred twenty-one million, two thousand, one hundred thirty".