121755370435 has 4 divisors (see below), whose sum is σ = 146106444528. Its totient is φ = 97404296344.

The previous prime is 121755370427. The next prime is 121755370441. The reversal of 121755370435 is 534073557121.

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 121755370435 - 2³ = 121755370427 is a prime.

It is a super-4 number, since 4×121755370435⁴ (a number of 45 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121755370391 and 121755370400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12175537039 + ... + 12175537048.

It is an arithmetic number, because the mean of its divisors is an integer number (36526611132).

Almost surely, 2^121755370435 is an apocalyptic number.

121755370435 is a deficient number, since it is larger than the sum of its proper divisors (24351074093).

121755370435 is an equidigital number, since it uses as much as digits as its factorization.

121755370435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24351074092.

The product of its (nonzero) digits is 441000, while the sum is 43.

The spelling of 121755370435 in words is "one hundred twenty-one billion, seven hundred fifty-five million, three hundred seventy thousand, four hundred thirty-five".