231011043 has 8 divisors (see below), whose sum is σ = 308164800. Its totient is φ = 153932328.

The previous prime is 231011023. The next prime is 231011069. The reversal of 231011043 is 340110132.

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

It is a de Polignac number, because none of the positive numbers 2^k-231011043 is a prime.

It is a super-2 number, since 2×231011043² = 106732203975895698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231011023) 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, 11133 + ... + 24206.

It is an arithmetic number, because the mean of its divisors is an integer number (38520600).

Almost surely, 2^231011043 is an apocalyptic number.

231011043 is a deficient number, since it is larger than the sum of its proper divisors (77153757).

231011043 is a wasteful number, since it uses less digits than its factorization.

231011043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37521.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 231011043 is about 15199.0474372574. The cubic root of 231011043 is about 613.5890212355.

Adding to 231011043 its reverse (340110132), we get a palindrome (571121175).

The spelling of 231011043 in words is "two hundred thirty-one million, eleven thousand, forty-three".