31222241511143 has 2 divisors, whose sum is σ = 31222241511144. Its totient is φ = 31222241511142.

The previous prime is 31222241511113. The next prime is 31222241511187. The reversal of 31222241511143 is 34111514222213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31222241511143 - 2²⁴ = 31222224733927 is a prime.

It is a super-2 number, since 2×31222241511143² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31222241511113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15611120755571 + 15611120755572.

It is an arithmetic number, because the mean of its divisors is an integer number (15611120755572).

Almost surely, 2^{31222241511143} is an apocalyptic number.

31222241511143 is a deficient number, since it is larger than the sum of its proper divisors (1).

31222241511143 is an equidigital number, since it uses as much as digits as its factorization.

31222241511143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 32.

Adding to 31222241511143 its reverse (34111514222213), we get a palindrome (65333755733356).

The spelling of 31222241511143 in words is "thirty-one trillion, two hundred twenty-two billion, two hundred forty-one million, five hundred eleven thousand, one hundred forty-three".