31233010212133 has 4 divisors (see below), whose sum is σ = 31233978499660. Its totient is φ = 31232041924608.

The previous prime is 31233010212101. The next prime is 31233010212191. The reversal of 31233010212133 is 33121201033213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11094115393089 + 20138894819044 = 3330783^2 + 4487638^2 .

It is a cyclic number.

It is not a de Polignac number, because 31233010212133 - 2⁵ = 31233010212101 is a prime.

It is a super-2 number, since 2×31233010212133² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31233010212098 and 31233010212107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31233010212233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484095378 + ... + 484159891.

It is an arithmetic number, because the mean of its divisors is an integer number (7808494624915).

Almost surely, 2^{31233010212133} is an apocalyptic number.

It is an amenable number.

31233010212133 is a deficient number, since it is larger than the sum of its proper divisors (968287527).

31233010212133 is an equidigital number, since it uses as much as digits as its factorization.

31233010212133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968287526.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31233010212133 its reverse (33121201033213), we get a palindrome (64354211245346).

The spelling of 31233010212133 in words is "thirty-one trillion, two hundred thirty-three billion, ten million, two hundred twelve thousand, one hundred thirty-three".