142321163442530 has 8 divisors (see below), whose sum is σ = 256178094196572. Its totient is φ = 56928465377008.

The previous prime is 142321163442439. The next prime is 142321163442569. The reversal of 142321163442530 is 35244361123241.

It can be written as a sum of positive squares in 2 ways, for example, as 140100625360921 + 2220538081609 = 11836411^2 + 1490147^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×142321163442530² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7116058172117 + ... + 7116058172136.

Almost surely, 2^{142321163442530} is an apocalyptic number.

142321163442530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142321163442530 is a deficient number, since it is larger than the sum of its proper divisors (113856930754042).

142321163442530 is a wasteful number, since it uses less digits than its factorization.

142321163442530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14232116344260.

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 142321163442530 in words is "one hundred forty-two trillion, three hundred twenty-one billion, one hundred sixty-three million, four hundred forty-two thousand, five hundred thirty".