121048693920 has 960 divisors, whose sum is σ = 538335528192. Its totient is φ = 24883200000.

The previous prime is 121048693849. The next prime is 121048693921. The reversal of 121048693920 is 29396840121.

121048693920 is a `hidden beast` number, since 1 + 210 + 48 + 6 + 9 + 392 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (121048693921) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 100789320 + ... + 100790520.

Almost surely, 2^121048693920 is an apocalyptic number.

121048693920 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 121048693920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269167764096).

121048693920 is an abundant number, since it is smaller than the sum of its proper divisors (417286834272).

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

121048693920 is a wasteful number, since it uses less digits than its factorization.

121048693920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347 (or 1330 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 121048693920 in words is "one hundred twenty-one billion, forty-eight million, six hundred ninety-three thousand, nine hundred twenty".