121403153313192 has 64 divisors (see below), whose sum is σ = 307409217837120. Its totient is φ = 39949641566208.

The previous prime is 121403153313179. The next prime is 121403153313193. The reversal of 121403153313192 is 291313351304121.

It is a self number, because there is not a number n which added to its sum of digits gives 121403153313192.

It is not an unprimeable number, because it can be changed into a prime (121403153313193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64754778 + ... + 66603209.

It is an arithmetic number, because the mean of its divisors is an integer number (4803269028705).

Almost surely, 2^{121403153313192} is an apocalyptic number.

121403153313192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121403153313192 is an abundant number, since it is smaller than the sum of its proper divisors (186006064523928).

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

121403153313192 is a wasteful number, since it uses less digits than its factorization.

121403153313192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131358490 (or 131358486 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 39.

The spelling of 121403153313192 in words is "one hundred twenty-one trillion, four hundred three billion, one hundred fifty-three million, three hundred thirteen thousand, one hundred ninety-two".