121531052132140 has 24 divisors (see below), whose sum is σ = 291674525117472. Its totient is φ = 41667789302400.

The previous prime is 121531052132137. The next prime is 121531052132179. The reversal of 121531052132140 is 41231250135121.

It is a super-3 number, since 3×121531052132140³ (a number of 43 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434039471761 + ... + 434039472040.

It is an arithmetic number, because the mean of its divisors is an integer number (12153105213228).

Almost surely, 2^{121531052132140} is an apocalyptic number.

121531052132140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121531052132140 is an abundant number, since it is smaller than the sum of its proper divisors (170143472985332).

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

121531052132140 is a wasteful number, since it uses less digits than its factorization.

121531052132140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868078943817 (or 868078943815 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 121531052132140 in words is "one hundred twenty-one trillion, five hundred thirty-one billion, fifty-two million, one hundred thirty-two thousand, one hundred forty".