121531052132141 has 16 divisors (see below), whose sum is σ = 123665397373440. Its totient is φ = 119409480408960.

The previous prime is 121531052132137. The next prime is 121531052132179. The reversal of 121531052132141 is 141231250135121.

It is a cyclic number.

It is not a de Polignac number, because 121531052132141 - 2² = 121531052132137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121531052132098 and 121531052132107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121531052132111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213818396 + ... + 214386026.

It is an arithmetic number, because the mean of its divisors is an integer number (7729087335840).

Almost surely, 2^{121531052132141} is an apocalyptic number.

It is an amenable number.

121531052132141 is a deficient number, since it is larger than the sum of its proper divisors (2134345241299).

121531052132141 is a wasteful number, since it uses less digits than its factorization.

121531052132141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578876.

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 121531052132141 in words is "one hundred twenty-one trillion, five hundred thirty-one billion, fifty-two million, one hundred thirty-two thousand, one hundred forty-one".