121785430360 has 48 divisors (see below), whose sum is σ = 301192491600. Its totient is φ = 44285609280.

The previous prime is 121785430301. The next prime is 121785430387. The reversal of 121785430360 is 63034587121.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12576300 + ... + 12585979.

It is an arithmetic number, because the mean of its divisors is an integer number (6274843575).

Almost surely, 2^121785430360 is an apocalyptic number.

121785430360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121785430360 is an abundant number, since it is smaller than the sum of its proper divisors (179407061240).

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

121785430360 is a wasteful number, since it uses less digits than its factorization.

121785430360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25162312 (or 25162297 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 121785430360 in words is "one hundred twenty-one billion, seven hundred eighty-five million, four hundred thirty thousand, three hundred sixty".