231214433 has 16 divisors (see below), whose sum is σ = 249627456. Its totient is φ = 213373440.

The previous prime is 231214429. The next prime is 231214471. The reversal of 231214433 is 334412132.

It is a cyclic number.

It is not a de Polignac number, because 231214433 - 2² = 231214429 is a prime.

It is a super-2 number, since 2×231214433² = 106920228055022978, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231214399 and 231214408.

It is not an unprimeable number, because it can be changed into a prime (231214493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261410 + ... + 262292.

It is an arithmetic number, because the mean of its divisors is an integer number (15601716).

Almost surely, 2^231214433 is an apocalyptic number.

It is an amenable number.

231214433 is a deficient number, since it is larger than the sum of its proper divisors (18413023).

231214433 is a wasteful number, since it uses less digits than its factorization.

231214433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184.

The product of its digits is 1728, while the sum is 23.

The square root of 231214433 is about 15205.7368450200. The cubic root of 231214433 is about 613.7690433128.

Adding to 231214433 its reverse (334412132), we get a palindrome (565626565).

The spelling of 231214433 in words is "two hundred thirty-one million, two hundred fourteen thousand, four hundred thirty-three".