121750453000 has 128 divisors (see below), whose sum is σ = 316065110400. Its totient is φ = 43522272000.

The previous prime is 121750452983. The next prime is 121750453003. The reversal of 121750453000 is 354057121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 121750453000.

It is not an unprimeable number, because it can be changed into a prime (121750453003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 555202 + ... + 742798.

It is an arithmetic number, because the mean of its divisors is an integer number (2469258675).

Almost surely, 2^121750453000 is an apocalyptic number.

121750453000 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 121750453000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158032555200).

121750453000 is an abundant number, since it is smaller than the sum of its proper divisors (194314657400).

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

121750453000 is a wasteful number, since it uses less digits than its factorization.

121750453000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187688 (or 187674 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The spelling of 121750453000 in words is "one hundred twenty-one billion, seven hundred fifty million, four hundred fifty-three thousand".