121732346880 has 264 divisors, whose sum is σ = 437426082912. Its totient is φ = 32461627392.

The previous prime is 121732346839. The next prime is 121732346891. The reversal of 121732346880 is 88643237121.

121732346880 is a `hidden beast` number, since 1 + 21 + 73 + 23 + 468 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1195239 + ... + 1293081.

Almost surely, 2^121732346880 is an apocalyptic number.

121732346880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121732346880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218713041456).

121732346880 is an abundant number, since it is smaller than the sum of its proper divisors (315693736032).

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

121732346880 is an frugal number, since it uses more digits than its factorization.

121732346880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97883 (or 97853 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 121732346880 in words is "one hundred twenty-one billion, seven hundred thirty-two million, three hundred forty-six thousand, eight hundred eighty".