31144043240211 has 16 divisors (see below), whose sum is σ = 45938460711168. Its totient is φ = 18609330146400.

The previous prime is 31144043240201. The next prime is 31144043240243. The reversal of 31144043240211 is 11204234044113.

It is a happy number.

It is not a de Polignac number, because 31144043240211 - 2⁶ = 31144043240147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31144043240201) 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, 6646186996 + ... + 6646191681.

It is an arithmetic number, because the mean of its divisors is an integer number (2871153794448).

Almost surely, 2^{31144043240211} is an apocalyptic number.

31144043240211 is a deficient number, since it is larger than the sum of its proper divisors (14794417470957).

31144043240211 is a wasteful number, since it uses less digits than its factorization.

31144043240211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13292378762.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 31144043240211 its reverse (11204234044113), we get a palindrome (42348277284324).

The spelling of 31144043240211 in words is "thirty-one trillion, one hundred forty-four billion, forty-three million, two hundred forty thousand, two hundred eleven".