142326013465021 has 4 divisors (see below), whose sum is σ = 142326729946044. Its totient is φ = 142325296984000.

The previous prime is 142326013465007. The next prime is 142326013465033. The reversal of 142326013465021 is 120564310623241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 119016535680900 + 23309477784121 = 10909470^2 + 4827989^2 .

It is a cyclic number.

It is not a de Polignac number, because 142326013465021 - 2³¹ = 142323865981373 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 (142326013465081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357942460 + ... + 358339861.

It is an arithmetic number, because the mean of its divisors is an integer number (35581682486511).

Almost surely, 2^{142326013465021} is an apocalyptic number.

It is an amenable number.

142326013465021 is a deficient number, since it is larger than the sum of its proper divisors (716481023).

142326013465021 is an equidigital number, since it uses as much as digits as its factorization.

142326013465021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716481022.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 142326013465021 in words is "one hundred forty-two trillion, three hundred twenty-six billion, thirteen million, four hundred sixty-five thousand, twenty-one".