142321412226561 has 32 divisors (see below), whose sum is σ = 209344149209088. Its totient is φ = 85611418840320.

The previous prime is 142321412226547. The next prime is 142321412226563. The reversal of 142321412226561 is 165622214123241.

It is not a de Polignac number, because 142321412226561 - 2⁵ = 142321412226529 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142321412226563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 420484425 + ... + 420822758.

It is an arithmetic number, because the mean of its divisors is an integer number (6542004662784).

Almost surely, 2^{142321412226561} is an apocalyptic number.

It is an amenable number.

142321412226561 is a deficient number, since it is larger than the sum of its proper divisors (67022736982527).

142321412226561 is a wasteful number, since it uses less digits than its factorization.

142321412226561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841307341.

The product of its digits is 276480, while the sum is 42.

The spelling of 142321412226561 in words is "one hundred forty-two trillion, three hundred twenty-one billion, four hundred twelve million, two hundred twenty-six thousand, five hundred sixty-one".