121451140564331 has 4 divisors (see below), whose sum is σ = 121480356623472. Its totient is φ = 121421924505192.

The previous prime is 121451140564307. The next prime is 121451140564339. The reversal of 121451140564331 is 133465041154121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121451140564331 - 2⁴² = 117053094053227 is a prime.

It is a super-2 number, since 2×121451140564331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121451140564339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14608023335 + ... + 14608031648.

It is an arithmetic number, because the mean of its divisors is an integer number (30370089155868).

Almost surely, 2^{121451140564331} is an apocalyptic number.

121451140564331 is a deficient number, since it is larger than the sum of its proper divisors (29216059141).

121451140564331 is an equidigital number, since it uses as much as digits as its factorization.

121451140564331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29216059140.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 121451140564331 in words is "one hundred twenty-one trillion, four hundred fifty-one billion, one hundred forty million, five hundred sixty-four thousand, three hundred thirty-one".