231103433 has 4 divisors (see below), whose sum is σ = 252112848. Its totient is φ = 210094020.

The previous prime is 231103427. The next prime is 231103459. The reversal of 231103433 is 334301132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231103433 - 2¹⁰ = 231102409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (231100433) 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, 10504691 + ... + 10504712.

It is an arithmetic number, because the mean of its divisors is an integer number (63028212).

Almost surely, 2^231103433 is an apocalyptic number.

It is an amenable number.

231103433 is a deficient number, since it is larger than the sum of its proper divisors (21009415).

231103433 is a wasteful number, since it uses less digits than its factorization.

231103433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21009414.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 231103433 is about 15202.0864686398. The cubic root of 231103433 is about 613.6708094380.

Adding to 231103433 its reverse (334301132), we get a palindrome (565404565).

The spelling of 231103433 in words is "two hundred thirty-one million, one hundred three thousand, four hundred thirty-three".