121374377433 has 12 divisors (see below), whose sum is σ = 175327549488. Its totient is φ = 80912095800.

The previous prime is 121374377419. The next prime is 121374377441. The reversal of 121374377433 is 334773473121.

121374377433 is a `hidden beast` number, since 12 + 137 + 4 + 3 + 77 + 433 = 666.

It is not a de Polignac number, because 121374377433 - 2⁴ = 121374377417 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121374377533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155835 + ... + 516752.

It is an arithmetic number, because the mean of its divisors is an integer number (14610629124).

Almost surely, 2^121374377433 is an apocalyptic number.

It is an amenable number.

121374377433 is a deficient number, since it is larger than the sum of its proper divisors (53953172055).

121374377433 is a wasteful number, since it uses less digits than its factorization.

121374377433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692644 (or 692641 counting only the distinct ones).

The product of its digits is 889056, while the sum is 45.

The spelling of 121374377433 in words is "one hundred twenty-one billion, three hundred seventy-four million, three hundred seventy-seven thousand, four hundred thirty-three".