142021400013 has 24 divisors (see below), whose sum is σ = 215973742400. Its totient is φ = 89683282944.

The previous prime is 142021400009. The next prime is 142021400047. The reversal of 142021400013 is 310004120241.

It is not a de Polignac number, because 142021400013 - 2² = 142021400009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142021400113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1052856 + ... + 1180062.

Almost surely, 2^142021400013 is an apocalyptic number.

It is an amenable number.

142021400013 is a deficient number, since it is larger than the sum of its proper divisors (73952342387).

142021400013 is a wasteful number, since it uses less digits than its factorization.

142021400013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133761 (or 133758 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 142021400013 its reverse (310004120241), we get a palindrome (452025520254).

The spelling of 142021400013 in words is "one hundred forty-two billion, twenty-one million, four hundred thousand, thirteen".