142321161304306 has 4 divisors (see below), whose sum is σ = 213481741956462. Its totient is φ = 71160580652152.

The previous prime is 142321161304297. The next prime is 142321161304319. The reversal of 142321161304306 is 603403161123241.

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

It can be written as a sum of positive squares in only one way, i.e., 87457378978225 + 54863782326081 = 9351865^2 + 7407009^2 .

It is a super-2 number, since 2×142321161304306² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35580290326075 + ... + 35580290326078.

Almost surely, 2^{142321161304306} is an apocalyptic number.

142321161304306 is a deficient number, since it is larger than the sum of its proper divisors (71160580652156).

142321161304306 is an equidigital number, since it uses as much as digits as its factorization.

142321161304306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71160580652155.

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 142321161304306 in words is "one hundred forty-two trillion, three hundred twenty-one billion, one hundred sixty-one million, three hundred four thousand, three hundred six".