31233030130133 has 4 divisors (see below), whose sum is σ = 33635570909388. Its totient is φ = 28830489350880.

The previous prime is 31233030130117. The next prime is 31233030130147. The reversal of 31233030130133 is 33103103033213.

It is a happy number.

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 7557974177329 + 23675055952804 = 2749177^2 + 4865702^2 .

It is a cyclic number.

It is not a de Polignac number, because 31233030130133 - 2⁴ = 31233030130117 is a prime.

It is a super-2 number, since 2×31233030130133² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31233030130153) 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, 1201270389608 + ... + 1201270389633.

It is an arithmetic number, because the mean of its divisors is an integer number (8408892727347).

Almost surely, 2^{31233030130133} is an apocalyptic number.

It is an amenable number.

31233030130133 is a deficient number, since it is larger than the sum of its proper divisors (2402540779255).

31233030130133 is a wasteful number, since it uses less digits than its factorization.

31233030130133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402540779254.

The product of its (nonzero) digits is 4374, while the sum is 26.

Adding to 31233030130133 its reverse (33103103033213), we get a palindrome (64336133163346).

The spelling of 31233030130133 in words is "thirty-one trillion, two hundred thirty-three billion, thirty million, one hundred thirty thousand, one hundred thirty-three".