231102043 has 4 divisors (see below), whose sum is σ = 231323400. Its totient is φ = 230880688.

The previous prime is 231102041. The next prime is 231102061. The reversal of 231102043 is 340201132.

It is a happy number.

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 231102043 - 2¹ = 231102041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231102041) 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, 109105 + ... + 111202.

It is an arithmetic number, because the mean of its divisors is an integer number (57830850).

Almost surely, 2^231102043 is an apocalyptic number.

231102043 is a deficient number, since it is larger than the sum of its proper divisors (221357).

231102043 is a wasteful number, since it uses less digits than its factorization.

231102043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221356.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 231102043 is about 15202.0407511623. The cubic root of 231102043 is about 613.6695791027.

Adding to 231102043 its reverse (340201132), we get a palindrome (571303175).

The spelling of 231102043 in words is "two hundred thirty-one million, one hundred two thousand, forty-three".