231412211 has 16 divisors (see below), whose sum is σ = 248155488. Its totient is φ = 215040000.

The previous prime is 231412201. The next prime is 231412231. The reversal of 231412211 is 112214132.

It is a cyclic number.

It is not a de Polignac number, because 231412211 - 2⁶ = 231412147 is a prime.

It is a super-2 number, since 2×231412211² = 107103222799817042, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231412211.

It is not an unprimeable number, because it can be changed into a prime (231412201) 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, 823391 + ... + 823671.

It is an arithmetic number, because the mean of its divisors is an integer number (15509718).

Almost surely, 2^231412211 is an apocalyptic number.

231412211 is a deficient number, since it is larger than the sum of its proper divisors (16743277).

231412211 is a wasteful number, since it uses less digits than its factorization.

231412211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742.

The product of its digits is 96, while the sum is 17.

The square root of 231412211 is about 15212.2388556057. The cubic root of 231412211 is about 613.9439969505.

Adding to 231412211 its reverse (112214132), we get a palindrome (343626343).

It can be divided in two parts, 23141 and 2211, that added together give a palindrome (25352).

The spelling of 231412211 in words is "two hundred thirty-one million, four hundred twelve thousand, two hundred eleven".