142331113 has 4 divisors (see below), whose sum is σ = 142355200. Its totient is φ = 142307028.

The previous prime is 142331047. The next prime is 142331173. The reversal of 142331113 is 311133241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 311133241 = 16547 ⋅18803.

It is a cyclic number.

It is not a de Polignac number, because 142331113 - 2¹⁷ = 142200041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142331173) 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, 3556 + ... + 17242.

It is an arithmetic number, because the mean of its divisors is an integer number (35588800).

Almost surely, 2^142331113 is an apocalyptic number.

It is an amenable number.

142331113 is a deficient number, since it is larger than the sum of its proper divisors (24087).

142331113 is a wasteful number, since it uses less digits than its factorization.

142331113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24086.

The product of its digits is 216, while the sum is 19.

The square root of 142331113 is about 11930.2603911231. The cubic root of 142331113 is about 522.1155347287.

Adding to 142331113 its reverse (311133241), we get a palindrome (453464354).

The spelling of 142331113 in words is "one hundred forty-two million, three hundred thirty-one thousand, one hundred thirteen".