231444240112211 has 32 divisors (see below), whose sum is σ = 276266102630400. Its totient is φ = 189578135197440.

The previous prime is 231444240112199. The next prime is 231444240112213. The reversal of 231444240112211 is 112211042444132.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-231444240112211 is a prime.

It is a super-2 number, since 2×231444240112211² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231444240112213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2450680130 + ... + 2450774568.

It is an arithmetic number, because the mean of its divisors is an integer number (8633315707200).

Almost surely, 2^{231444240112211} is an apocalyptic number.

231444240112211 is a deficient number, since it is larger than the sum of its proper divisors (44821862518189).

231444240112211 is a wasteful number, since it uses less digits than its factorization.

231444240112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108539.

The product of its (nonzero) digits is 12288, while the sum is 32.

Adding to 231444240112211 its reverse (112211042444132), we get a palindrome (343655282556343).

The spelling of 231444240112211 in words is "two hundred thirty-one trillion, four hundred forty-four billion, two hundred forty million, one hundred twelve thousand, two hundred eleven".