142103231 has 8 divisors (see below), whose sum is σ = 146095104. Its totient is φ = 138151800.

The previous prime is 142103207. The next prime is 142103243. The reversal of 142103231 is 132301241.

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

It is not a de Polignac number, because 142103231 - 2¹⁸ = 141841087 is a prime.

It is a super-2 number, since 2×142103231² = 40386656521278722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142103251) 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, 2915 + ... + 17108.

It is an arithmetic number, because the mean of its divisors is an integer number (18261888).

Almost surely, 2^142103231 is an apocalyptic number.

142103231 is a deficient number, since it is larger than the sum of its proper divisors (3991873).

142103231 is a wasteful number, since it uses less digits than its factorization.

142103231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20221.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 142103231 is about 11920.7059774159. The cubic root of 142103231 is about 521.8367381369.

Adding to 142103231 its reverse (132301241), we get a palindrome (274404472).

The spelling of 142103231 in words is "one hundred forty-two million, one hundred three thousand, two hundred thirty-one".