121120402032 has 160 divisors (see below), whose sum is σ = 398235622400. Its totient is φ = 34526621952.

The previous prime is 121120402003. The next prime is 121120402037. The reversal of 121120402032 is 230204021121.

It is a happy number.

121120402032 is a `hidden beast` number, since 1 + 211 + 20 + 402 + 0 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 121120401996 and 121120402014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121120402037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1281918 + ... + 1373154.

It is an arithmetic number, because the mean of its divisors is an integer number (2488972640).

Almost surely, 2^121120402032 is an apocalyptic number.

121120402032 is a gapful number since it is divisible by the number (12) 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 121120402032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199117811200).

121120402032 is an abundant number, since it is smaller than the sum of its proper divisors (277115220368).

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

121120402032 is a wasteful number, since it uses less digits than its factorization.

121120402032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91700 (or 91688 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 121120402032 its reverse (230204021121), we get a palindrome (351324423153).

The spelling of 121120402032 in words is "one hundred twenty-one billion, one hundred twenty million, four hundred two thousand, thirty-two".