131200330121 has 4 divisors (see below), whose sum is σ = 149943234432. Its totient is φ = 112457425812.

The previous prime is 131200330111. The next prime is 131200330123. The reversal of 131200330121 is 121033002131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131200330121 - 2¹⁰ = 131200329097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131200330121.

It is not an unprimeable number, because it can be changed into a prime (131200330123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9371452145 + ... + 9371452158.

It is an arithmetic number, because the mean of its divisors is an integer number (37485808608).

Almost surely, 2^131200330121 is an apocalyptic number.

It is an amenable number.

131200330121 is a deficient number, since it is larger than the sum of its proper divisors (18742904311).

131200330121 is an equidigital number, since it uses as much as digits as its factorization.

131200330121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18742904310.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 131200330121 its reverse (121033002131), we get a palindrome (252233332252).

The spelling of 131200330121 in words is "one hundred thirty-one billion, two hundred million, three hundred thirty thousand, one hundred twenty-one".