121752373377 has 4 divisors (see below), whose sum is σ = 162336497840. Its totient is φ = 81168248916.

The previous prime is 121752373361. The next prime is 121752373399. The reversal of 121752373377 is 773373257121.

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 not a de Polignac number, because 121752373377 - 2⁴ = 121752373361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121752373307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20292062227 + ... + 20292062232.

It is an arithmetic number, because the mean of its divisors is an integer number (40584124460).

Almost surely, 2^121752373377 is an apocalyptic number.

It is an amenable number.

121752373377 is a deficient number, since it is larger than the sum of its proper divisors (40584124463).

121752373377 is an equidigital number, since it uses as much as digits as its factorization.

121752373377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40584124462.

The product of its digits is 1296540, while the sum is 48.

The spelling of 121752373377 in words is "one hundred twenty-one billion, seven hundred fifty-two million, three hundred seventy-three thousand, three hundred seventy-seven".