142113275921 has 2 divisors, whose sum is σ = 142113275922. Its totient is φ = 142113275920.

The previous prime is 142113275911. The next prime is 142113275951. The reversal of 142113275921 is 129572311241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125333700625 + 16779575296 = 354025^2 + 129536^2 .

It is a cyclic number.

It is not a de Polignac number, because 142113275921 - 2²² = 142109081617 is a prime.

It is not a weakly prime, because it can be changed into another prime (142113275911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71056637960 + 71056637961.

It is an arithmetic number, because the mean of its divisors is an integer number (71056637961).

Almost surely, 2^142113275921 is an apocalyptic number.

It is an amenable number.

142113275921 is a deficient number, since it is larger than the sum of its proper divisors (1).

142113275921 is an equidigital number, since it uses as much as digits as its factorization.

142113275921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 38.

The spelling of 142113275921 in words is "one hundred forty-two billion, one hundred thirteen million, two hundred seventy-five thousand, nine hundred twenty-one".