121557468315433 has 4 divisors (see below), whose sum is σ = 121570786771840. Its totient is φ = 121544149859028.

The previous prime is 121557468315421. The next prime is 121557468315511. The reversal of 121557468315433 is 334513864755121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121557468315433 - 2⁴¹ = 119358445059881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121557468315233) 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, 6659214513 + ... + 6659232766.

It is an arithmetic number, because the mean of its divisors is an integer number (30392696692960).

Almost surely, 2^{121557468315433} is an apocalyptic number.

It is an amenable number.

121557468315433 is a deficient number, since it is larger than the sum of its proper divisors (13318456407).

121557468315433 is an equidigital number, since it uses as much as digits as its factorization.

121557468315433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13318456406.

The product of its digits is 36288000, while the sum is 58.

The spelling of 121557468315433 in words is "one hundred twenty-one trillion, five hundred fifty-seven billion, four hundred sixty-eight million, three hundred fifteen thousand, four hundred thirty-three".