31033113200213 has 2 divisors, whose sum is σ = 31033113200214. Its totient is φ = 31033113200212.

The previous prime is 31033113200197. The next prime is 31033113200261. The reversal of 31033113200213 is 31200231133013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26598289966609 + 4434823233604 = 5157353^2 + 2105902^2 .

It is a cyclic number.

It is not a de Polignac number, because 31033113200213 - 2⁴ = 31033113200197 is a prime.

It is a super-2 number, since 2×31033113200213² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31033113200113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15516556600106 + 15516556600107.

It is an arithmetic number, because the mean of its divisors is an integer number (15516556600107).

Almost surely, 2^{31033113200213} is an apocalyptic number.

It is an amenable number.

31033113200213 is a deficient number, since it is larger than the sum of its proper divisors (1).

31033113200213 is an equidigital number, since it uses as much as digits as its factorization.

31033113200213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 31033113200213 its reverse (31200231133013), we get a palindrome (62233344333226).

The spelling of 31033113200213 in words is "thirty-one trillion, thirty-three billion, one hundred thirteen million, two hundred thousand, two hundred thirteen".