121477633530 has 32 divisors (see below), whose sum is σ = 318050532288. Its totient is φ = 29449123200.

The previous prime is 121477633523. The next prime is 121477633531. The reversal of 121477633530 is 35336774121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121477633531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184056691 + ... + 184057350.

It is an arithmetic number, because the mean of its divisors is an integer number (9939079134).

Almost surely, 2^121477633530 is an apocalyptic number.

121477633530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121477633530 is an abundant number, since it is smaller than the sum of its proper divisors (196572898758).

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

121477633530 is a wasteful number, since it uses less digits than its factorization.

121477633530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368114062.

The product of its (nonzero) digits is 317520, while the sum is 42.

The spelling of 121477633530 in words is "one hundred twenty-one billion, four hundred seventy-seven million, six hundred thirty-three thousand, five hundred thirty".