20142431120140 has 120 divisors (see below), whose sum is σ = 52248729208032. Its totient is φ = 6499742215680.

The previous prime is 20142431120137. The next prime is 20142431120177. The reversal of 20142431120140 is 4102113424102.

It is a super-2 number, since 2×20142431120140² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11520696 + ... + 13153375.

Almost surely, 2^{20142431120140} is an apocalyptic number.

20142431120140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20142431120140 is an abundant number, since it is smaller than the sum of its proper divisors (32106298087892).

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

20142431120140 is a wasteful number, since it uses less digits than its factorization.

20142431120140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24674125 (or 24674102 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 20142431120140 its reverse (4102113424102), we get a palindrome (24244544544242).

The spelling of 20142431120140 in words is "twenty trillion, one hundred forty-two billion, four hundred thirty-one million, one hundred twenty thousand, one hundred forty".