142321011510389 has 2 divisors, whose sum is σ = 142321011510390. Its totient is φ = 142321011510388.

The previous prime is 142321011510371. The next prime is 142321011510397. The reversal of 142321011510389 is 983015110123241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140416219570225 + 1904791940164 = 11849735^2 + 1380142^2 .

It is a cyclic number.

It is not a de Polignac number, because 142321011510389 - 2²⁰ = 142321010461813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142321011510319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71160505755194 + 71160505755195.

It is an arithmetic number, because the mean of its divisors is an integer number (71160505755195).

Almost surely, 2^{142321011510389} is an apocalyptic number.

It is an amenable number.

142321011510389 is a deficient number, since it is larger than the sum of its proper divisors (1).

142321011510389 is an equidigital number, since it uses as much as digits as its factorization.

142321011510389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 41.

The spelling of 142321011510389 in words is "one hundred forty-two trillion, three hundred twenty-one billion, eleven million, five hundred ten thousand, three hundred eighty-nine".