142320232231 has 8 divisors (see below), whose sum is σ = 146380757904. Its totient is φ = 138270971520.

The previous prime is 142320232213. The next prime is 142320232267. The reversal of 142320232231 is 132232023241.

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

It is a cyclic number.

It is not a de Polignac number, because 142320232231 - 2⁹ = 142320231719 is a prime.

It is a super-2 number, since 2×142320232231² (a number of 23 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 = 142320232196 and 142320232205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142320232291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2790610 + ... + 2841151.

It is an arithmetic number, because the mean of its divisors is an integer number (18297594738).

Almost surely, 2^142320232231 is an apocalyptic number.

142320232231 is a deficient number, since it is larger than the sum of its proper divisors (4060525673).

142320232231 is an equidigital number, since it uses as much as digits as its factorization.

142320232231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5632481.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 142320232231 its reverse (132232023241), we get a palindrome (274552255472).

The spelling of 142320232231 in words is "one hundred forty-two billion, three hundred twenty million, two hundred thirty-two thousand, two hundred thirty-one".