142321100352131 has 4 divisors (see below), whose sum is σ = 142642366944792. Its totient is φ = 141999833759472.

The previous prime is 142321100352127. The next prime is 142321100352133. The reversal of 142321100352131 is 131253001123241.

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

It is a cyclic number.

It is not a de Polignac number, because 142321100352131 - 2² = 142321100352127 is a prime.

It is a super-2 number, since 2×142321100352131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142321100352094 and 142321100352103.

It is not an unprimeable number, because it can be changed into a prime (142321100352133) 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, 160633295666 + ... + 160633296551.

It is an arithmetic number, because the mean of its divisors is an integer number (35660591736198).

Almost surely, 2^{142321100352131} is an apocalyptic number.

142321100352131 is a deficient number, since it is larger than the sum of its proper divisors (321266592661).

142321100352131 is an equidigital number, since it uses as much as digits as its factorization.

142321100352131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321266592660.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 142321100352131 its reverse (131253001123241), we get a palindrome (273574101475372).

The spelling of 142321100352131 in words is "one hundred forty-two trillion, three hundred twenty-one billion, one hundred million, three hundred fifty-two thousand, one hundred thirty-one".