120891012480 has 1152 divisors, whose sum is σ = 515021794560. Its totient is φ = 26011238400.

The previous prime is 120891012467. The next prime is 120891012523. The reversal of 120891012480 is 84210198021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a super-2 number, since 2×120891012480² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 358726872 + ... + 358727208.

It is an arithmetic number, because the mean of its divisors is an integer number (447067530).

Almost surely, 2^120891012480 is an apocalyptic number.

120891012480 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 120891012480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257510897280).

120891012480 is an abundant number, since it is smaller than the sum of its proper divisors (394130782080).

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

120891012480 is a wasteful number, since it uses less digits than its factorization.

120891012480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The spelling of 120891012480 in words is "one hundred twenty billion, eight hundred ninety-one million, twelve thousand, four hundred eighty".