121000115140400 has 60 divisors (see below), whose sum is σ = 292163594790000. Its totient is φ = 48156829712640.

The previous prime is 121000115140351. The next prime is 121000115140417. The reversal of 121000115140400 is 4041511000121.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 759971375 + ... + 760130574.

It is an arithmetic number, because the mean of its divisors is an integer number (4869393246500).

Almost surely, 2^{121000115140400} is an apocalyptic number.

121000115140400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121000115140400 is an abundant number, since it is smaller than the sum of its proper divisors (171163479649600).

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

121000115140400 is a wasteful number, since it uses less digits than its factorization.

121000115140400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520102166 (or 1520102155 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 121000115140400 its reverse (4041511000121), we get a palindrome (125041626140521).

The spelling of 121000115140400 in words is "one hundred twenty-one trillion, one hundred fifteen million, one hundred forty thousand, four hundred".