121300600140 has 144 divisors (see below), whose sum is σ = 400884775200. Its totient is φ = 30444033024.

The previous prime is 121300600111. The next prime is 121300600153. The reversal of 121300600140 is 41006003121.

It is a happy number.

121300600140 is a `hidden beast` number, since 1 + 21 + 3 + 0 + 0 + 600 + 1 + 40 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 232575 + ... + 544694.

It is an arithmetic number, because the mean of its divisors is an integer number (2783922050).

Almost surely, 2^121300600140 is an apocalyptic number.

121300600140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121300600140 is an abundant number, since it is smaller than the sum of its proper divisors (279584175060).

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

121300600140 is a wasteful number, since it uses less digits than its factorization.

121300600140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777321 (or 777296 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 121300600140 its reverse (41006003121), we get a palindrome (162306603261).

The spelling of 121300600140 in words is "one hundred twenty-one billion, three hundred million, six hundred thousand, one hundred forty".