121315112320152 has 64 divisors (see below), whose sum is σ = 328596337111680. Its totient is φ = 37174535096832.

The previous prime is 121315112320111. The next prime is 121315112320223. The reversal of 121315112320152 is 251023211513121.

121315112320152 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 3457435498 + ... + 3457470585.

It is an arithmetic number, because the mean of its divisors is an integer number (5134317767370).

Almost surely, 2^{121315112320152} is an apocalyptic number.

121315112320152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121315112320152 is an abundant number, since it is smaller than the sum of its proper divisors (207281224791528).

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

121315112320152 is a wasteful number, since it uses less digits than its factorization.

121315112320152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6914906152 (or 6914906148 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 30.

Adding to 121315112320152 its reverse (251023211513121), we get a palindrome (372338323833273).

The spelling of 121315112320152 in words is "one hundred twenty-one trillion, three hundred fifteen billion, one hundred twelve million, three hundred twenty thousand, one hundred fifty-two".