31101331312133 has 2 divisors, whose sum is σ = 31101331312134. Its totient is φ = 31101331312132.

The previous prime is 31101331312127. The next prime is 31101331312141. The reversal of 31101331312133 is 33121313310113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24245401777444 + 6855929534689 = 4923962^2 + 2618383^2 .

It is a cyclic number.

It is not a de Polignac number, because 31101331312133 - 2⁸ = 31101331311877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31101331312333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15550665656066 + 15550665656067.

It is an arithmetic number, because the mean of its divisors is an integer number (15550665656067).

Almost surely, 2^{31101331312133} is an apocalyptic number.

It is an amenable number.

31101331312133 is a deficient number, since it is larger than the sum of its proper divisors (1).

31101331312133 is an equidigital number, since it uses as much as digits as its factorization.

31101331312133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 26.

Adding to 31101331312133 its reverse (33121313310113), we get a palindrome (64222644622246).

The spelling of 31101331312133 in words is "thirty-one trillion, one hundred one billion, three hundred thirty-one million, three hundred twelve thousand, one hundred thirty-three".