121314142140 has 24 divisors (see below), whose sum is σ = 339679598160. Its totient is φ = 32350437888.

The previous prime is 121314142133. The next prime is 121314142171. The reversal of 121314142140 is 41241413121.

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 121314142140.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1010951125 + ... + 1010951244.

It is an arithmetic number, because the mean of its divisors is an integer number (14153316590).

Almost surely, 2^121314142140 is an apocalyptic number.

121314142140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121314142140 is an abundant number, since it is smaller than the sum of its proper divisors (218365456020).

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

121314142140 is a wasteful number, since it uses less digits than its factorization.

121314142140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021902381 (or 2021902379 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 121314142140 its reverse (41241413121), we get a palindrome (162555555261).

The spelling of 121314142140 in words is "one hundred twenty-one billion, three hundred fourteen million, one hundred forty-two thousand, one hundred forty".