231103142 has 16 divisors (see below), whose sum is σ = 356206032. Its totient is φ = 112385280.

The previous prime is 231103139. The next prime is 231103157. The reversal of 231103142 is 241301132.

It is a self number, because there is not a number n which added to its sum of digits gives 231103142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23453 + ... + 31815.

It is an arithmetic number, because the mean of its divisors is an integer number (22262877).

Almost surely, 2^231103142 is an apocalyptic number.

231103142 is a deficient number, since it is larger than the sum of its proper divisors (125102890).

231103142 is a wasteful number, since it uses less digits than its factorization.

231103142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8743.

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

The square root of 231103142 is about 15202.0768975821. The cubic root of 231103142 is about 613.6705518647.

Adding to 231103142 its reverse (241301132), we get a palindrome (472404274).

The spelling of 231103142 in words is "two hundred thirty-one million, one hundred three thousand, one hundred forty-two".