3131011211233 has 2 divisors, whose sum is σ = 3131011211234. Its totient is φ = 3131011211232.

The previous prime is 3131011211227. The next prime is 3131011211261. The reversal of 3131011211233 is 3321121101313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3005448706129 + 125562505104 = 1733623^2 + 354348^2 .

It is a cyclic number.

It is not a de Polignac number, because 3131011211233 - 2¹⁷ = 3131011080161 is a prime.

It is not a weakly prime, because it can be changed into another prime (3131012211233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1565505605616 + 1565505605617.

It is an arithmetic number, because the mean of its divisors is an integer number (1565505605617).

Almost surely, 2^{3131011211233} is an apocalyptic number.

It is an amenable number.

3131011211233 is a deficient number, since it is larger than the sum of its proper divisors (1).

3131011211233 is an equidigital number, since it uses as much as digits as its factorization.

3131011211233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 3131011211233 its reverse (3321121101313), we get a palindrome (6452132312546).

The spelling of 3131011211233 in words is "three trillion, one hundred thirty-one billion, eleven million, two hundred eleven thousand, two hundred thirty-three".