31133010321233 has 2 divisors, whose sum is σ = 31133010321234. Its totient is φ = 31133010321232.

The previous prime is 31133010321199. The next prime is 31133010321263. The reversal of 31133010321233 is 33212301033113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26412784799569 + 4720225521664 = 5139337^2 + 2172608^2 .

It is a cyclic number.

It is not a de Polignac number, because 31133010321233 - 2¹² = 31133010317137 is a prime.

It is not a weakly prime, because it can be changed into another prime (31133010321263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15566505160616 + 15566505160617.

It is an arithmetic number, because the mean of its divisors is an integer number (15566505160617).

Almost surely, 2^{31133010321233} is an apocalyptic number.

It is an amenable number.

31133010321233 is a deficient number, since it is larger than the sum of its proper divisors (1).

31133010321233 is an equidigital number, since it uses as much as digits as its factorization.

31133010321233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 31133010321233 its reverse (33212301033113), we get a palindrome (64345311354346).

The spelling of 31133010321233 in words is "thirty-one trillion, one hundred thirty-three billion, ten million, three hundred twenty-one thousand, two hundred thirty-three".