121440000342 has 16 divisors (see below), whose sum is σ = 244100505600. Its totient is φ = 40276582632.

The previous prime is 121440000317. The next prime is 121440000421. The reversal of 121440000342 is 243000044121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50853078 + ... + 50855465.

It is an arithmetic number, because the mean of its divisors is an integer number (15256281600).

Almost surely, 2^121440000342 is an apocalyptic number.

121440000342 is an abundant number, since it is smaller than the sum of its proper divisors (122660505258).

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

121440000342 is a wasteful number, since it uses less digits than its factorization.

121440000342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101708747.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 121440000342 its reverse (243000044121), we get a palindrome (364440044463).

The spelling of 121440000342 in words is "one hundred twenty-one billion, four hundred forty million, three hundred forty-two", and thus it is an aban number.