231120043 has 24 divisors (see below), whose sum is σ = 291531744. Its totient is φ = 179351040.

The previous prime is 231120041. The next prime is 231120059. The reversal of 231120043 is 340021132.

It is a happy number.

It is not a de Polignac number, because 231120043 - 2¹ = 231120041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231119999 and 231120026.

It is not an unprimeable number, because it can be changed into a prime (231120041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 298605 + ... + 299377.

It is an arithmetic number, because the mean of its divisors is an integer number (12147156).

Almost surely, 2^231120043 is an apocalyptic number.

231120043 is a deficient number, since it is larger than the sum of its proper divisors (60411701).

231120043 is a wasteful number, since it uses less digits than its factorization.

231120043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155 (or 1144 counting only the distinct ones).

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

The square root of 231120043 is about 15202.6327654127. The cubic root of 231120043 is about 613.6855111206.

Adding to 231120043 its reverse (340021132), we get a palindrome (571141175).

The spelling of 231120043 in words is "two hundred thirty-one million, one hundred twenty thousand, forty-three".