131120343550554 has 32 divisors (see below), whose sum is σ = 273689082852480. Its totient is φ = 41799362818752.

The previous prime is 131120343550453. The next prime is 131120343550583. The reversal of 131120343550554 is 455055343021131.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 80136357 + ... + 81756200.

It is an arithmetic number, because the mean of its divisors is an integer number (8552783839140).

Almost surely, 2^{131120343550554} is an apocalyptic number.

131120343550554 is an abundant number, since it is smaller than the sum of its proper divisors (142568739301926).

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

131120343550554 is a wasteful number, since it uses less digits than its factorization.

131120343550554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161898454.

The product of its (nonzero) digits is 540000, while the sum is 42.

Adding to 131120343550554 its reverse (455055343021131), we get a palindrome (586175686571685).

The spelling of 131120343550554 in words is "one hundred thirty-one trillion, one hundred twenty billion, three hundred forty-three million, five hundred fifty thousand, five hundred fifty-four".