121306505232 has 80 divisors (see below), whose sum is σ = 352891699200. Its totient is φ = 35573750400.

The previous prime is 121306505183. The next prime is 121306505273. The reversal of 121306505232 is 232505603121.

It is a self number, because there is not a number n which added to its sum of digits gives 121306505232.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3689232 + ... + 3721967.

It is an arithmetic number, because the mean of its divisors is an integer number (4411146240).

Almost surely, 2^121306505232 is an apocalyptic number.

121306505232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121306505232 is an abundant number, since it is smaller than the sum of its proper divisors (231585193968).

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

121306505232 is a wasteful number, since it uses less digits than its factorization.

121306505232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7411252 (or 7411246 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 121306505232 in words is "one hundred twenty-one billion, three hundred six million, five hundred five thousand, two hundred thirty-two".