140121132542120 has 32 divisors (see below), whose sum is σ = 315272944935720. Its totient is φ = 56048382489600.

The previous prime is 140121132542087. The next prime is 140121132542123. The reversal of 140121132542120 is 21245231121041.

It can be written as a sum of positive squares in 4 ways, for example, as 139650517333924 + 470615208196 = 11817382^2 + 686014^2 .

It is not an unprimeable number, because it can be changed into a prime (140121132542123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39922220 + ... + 43290020.

Almost surely, 2^{140121132542120} is an apocalyptic number.

140121132542120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140121132542120 is an abundant number, since it is smaller than the sum of its proper divisors (175151812393600).

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

140121132542120 is a wasteful number, since it uses less digits than its factorization.

140121132542120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4407965 (or 4407961 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

Adding to 140121132542120 its reverse (21245231121041), we get a palindrome (161366363663161).

The spelling of 140121132542120 in words is "one hundred forty trillion, one hundred twenty-one billion, one hundred thirty-two million, five hundred forty-two thousand, one hundred twenty".