31323135241 has 2 divisors, whose sum is σ = 31323135242. Its totient is φ = 31323135240.

The previous prime is 31323135191. The next prime is 31323135247. The reversal of 31323135241 is 14253132313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25114325625 + 6208809616 = 158475^2 + 78796^2 .

It is a cyclic number.

It is not a de Polignac number, because 31323135241 - 2¹³ = 31323127049 is a prime.

It is a super-2 number, since 2×31323135241² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31323135247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15661567620 + 15661567621.

It is an arithmetic number, because the mean of its divisors is an integer number (15661567621).

Almost surely, 2^31323135241 is an apocalyptic number.

It is an amenable number.

31323135241 is a deficient number, since it is larger than the sum of its proper divisors (1).

31323135241 is an equidigital number, since it uses as much as digits as its factorization.

31323135241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 28.

Adding to 31323135241 its reverse (14253132313), we get a palindrome (45576267554).

The spelling of 31323135241 in words is "thirty-one billion, three hundred twenty-three million, one hundred thirty-five thousand, two hundred forty-one".