121302233040 has 80 divisors (see below), whose sum is σ = 377926704000. Its totient is φ = 32184700416.

The previous prime is 121302232999. The next prime is 121302233051. The reversal of 121302233040 is 40332203121.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 121302232998 and 121302233016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1222155 + ... + 1317674.

It is an arithmetic number, because the mean of its divisors is an integer number (4724083800).

Almost surely, 2^121302233040 is an apocalyptic number.

121302233040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121302233040 is an abundant number, since it is smaller than the sum of its proper divisors (256624470960).

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

121302233040 is a wasteful number, since it uses less digits than its factorization.

121302233040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2540044 (or 2540038 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 121302233040 its reverse (40332203121), we get a palindrome (161634436161).

The spelling of 121302233040 in words is "one hundred twenty-one billion, three hundred two million, two hundred thirty-three thousand, forty".