121381079610 has 96 divisors (see below), whose sum is σ = 340770058560. Its totient is φ = 27589191168.

The previous prime is 121381079593. The next prime is 121381079629. The reversal of 121381079610 is 16970183121.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32482 + ... + 493778.

It is an arithmetic number, because the mean of its divisors is an integer number (3549688110).

Almost surely, 2^121381079610 is an apocalyptic number.

121381079610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121381079610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170385029280).

121381079610 is an abundant number, since it is smaller than the sum of its proper divisors (219388978950).

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

121381079610 is a wasteful number, since it uses less digits than its factorization.

121381079610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461500 (or 461493 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 39.

The spelling of 121381079610 in words is "one hundred twenty-one billion, three hundred eighty-one million, seventy-nine thousand, six hundred ten".