131121302541204 has 96 divisors (see below), whose sum is σ = 307863908352000. Its totient is φ = 43434521844736.

The previous prime is 131121302541091. The next prime is 131121302541217. The reversal of 131121302541204 is 402145203121131.

It is a congruent number.

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, 4715053252 + ... + 4715081060.

It is an arithmetic number, because the mean of its divisors is an integer number (3206915712000).

Almost surely, 2^{131121302541204} is an apocalyptic number.

It is an amenable number.

131121302541204 is an abundant number, since it is smaller than the sum of its proper divisors (176742605810796).

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

131121302541204 is a wasteful number, since it uses less digits than its factorization.

131121302541204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31677 (or 31675 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 131121302541204 its reverse (402145203121131), we get a palindrome (533266505662335).

The spelling of 131121302541204 in words is "one hundred thirty-one trillion, one hundred twenty-one billion, three hundred two million, five hundred forty-one thousand, two hundred four".