121755370434 has 16 divisors (see below), whose sum is σ = 254098164672. Its totient is φ = 38820552848.

The previous prime is 121755370427. The next prime is 121755370441. The reversal of 121755370434 is 434073557121.

It is an interprime number because it is at equal distance from previous prime (121755370427) and next prime (121755370441).

It is a super-2 number, since 2×121755370434² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441142509 + ... + 441142784.

It is an arithmetic number, because the mean of its divisors is an integer number (15881135292).

Almost surely, 2^121755370434 is an apocalyptic number.

121755370434 is an abundant number, since it is smaller than the sum of its proper divisors (132342794238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121755370434 is a wasteful number, since it uses less digits than its factorization.

121755370434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882285321.

The product of its (nonzero) digits is 352800, while the sum is 42.

The spelling of 121755370434 in words is "one hundred twenty-one billion, seven hundred fifty-five million, three hundred seventy thousand, four hundred thirty-four".