210231031133 has 2 divisors, whose sum is σ = 210231031134. Its totient is φ = 210231031132.

The previous prime is 210231031081. The next prime is 210231031151. The reversal of 210231031133 is 331130132012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210055389124 + 175642009 = 458318^2 + 13253^2 .

It is a cyclic number.

It is not a de Polignac number, because 210231031133 - 2²² = 210226836829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210231001133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105115515566 + 105115515567.

It is an arithmetic number, because the mean of its divisors is an integer number (105115515567).

Almost surely, 2^210231031133 is an apocalyptic number.

It is an amenable number.

210231031133 is a deficient number, since it is larger than the sum of its proper divisors (1).

210231031133 is an equidigital number, since it uses as much as digits as its factorization.

210231031133 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 20.

Adding to 210231031133 its reverse (331130132012), we get a palindrome (541361163145).

The spelling of 210231031133 in words is "two hundred ten billion, two hundred thirty-one million, thirty-one thousand, one hundred thirty-three".