131121153550004 has 24 divisors (see below), whose sum is σ = 232912856520960. Its totient is φ = 64581741915264.

The previous prime is 131121153549983. The next prime is 131121153550039. The reversal of 131121153550004 is 400055351121131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 889776164 + ... + 889923515.

It is an arithmetic number, because the mean of its divisors is an integer number (9704702355040).

Almost surely, 2^{131121153550004} is an apocalyptic number.

It is an amenable number.

131121153550004 is a deficient number, since it is larger than the sum of its proper divisors (101791702970956).

131121153550004 is a wasteful number, since it uses less digits than its factorization.

131121153550004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779699959 (or 1779699957 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 32.

The spelling of 131121153550004 in words is "one hundred thirty-one trillion, one hundred twenty-one billion, one hundred fifty-three million, five hundred fifty thousand, four".