31544233141 has 2 divisors, whose sum is σ = 31544233142. Its totient is φ = 31544233140.

The previous prime is 31544233139. The next prime is 31544233151. The reversal of 31544233141 is 14133244513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23277604900 + 8266628241 = 152570^2 + 90921^2 .

It is a cyclic number.

It is not a de Polignac number, because 31544233141 - 2¹ = 31544233139 is a prime.

Together with 31544233139, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31544233151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15772116570 + 15772116571.

It is an arithmetic number, because the mean of its divisors is an integer number (15772116571).

Almost surely, 2^31544233141 is an apocalyptic number.

It is an amenable number.

31544233141 is a deficient number, since it is larger than the sum of its proper divisors (1).

31544233141 is an equidigital number, since it uses as much as digits as its factorization.

31544233141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 31.

Adding to 31544233141 its reverse (14133244513), we get a palindrome (45677477654).

The spelling of 31544233141 in words is "thirty-one billion, five hundred forty-four million, two hundred thirty-three thousand, one hundred forty-one".