231011330332213 has 16 divisors (see below), whose sum is σ = 233819711705536. Its totient is φ = 228223397525760.

The previous prime is 231011330332177. The next prime is 231011330332217. The reversal of 231011330332213 is 312233033110132.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231011330332213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231011330332217) 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 15 ways as a sum of consecutive naturals, for example, 16112395 + ... + 26863207.

It is an arithmetic number, because the mean of its divisors is an integer number (14613731981596).

Almost surely, 2^{231011330332213} is an apocalyptic number.

It is an amenable number.

231011330332213 is a deficient number, since it is larger than the sum of its proper divisors (2808381373323).

231011330332213 is a wasteful number, since it uses less digits than its factorization.

231011330332213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10751764.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 231011330332213 its reverse (312233033110132), we get a palindrome (543244363442345).

The spelling of 231011330332213 in words is "two hundred thirty-one trillion, eleven billion, three hundred thirty million, three hundred thirty-two thousand, two hundred thirteen".