2331001021213 has 2 divisors, whose sum is σ = 2331001021214. Its totient is φ = 2331001021212.

The previous prime is 2331001021189. The next prime is 2331001021231. The reversal of 2331001021213 is 3121201001332.

Together with next prime (2331001021231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2266295398084 + 64705623129 = 1505422^2 + 254373^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2331001021213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2331001021253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1165500510606 + 1165500510607.

It is an arithmetic number, because the mean of its divisors is an integer number (1165500510607).

Almost surely, 2^{2331001021213} is an apocalyptic number.

It is an amenable number.

2331001021213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2331001021213 is an equidigital number, since it uses as much as digits as its factorization.

2331001021213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 2331001021213 its reverse (3121201001332), we get a palindrome (5452202022545).

The spelling of 2331001021213 in words is "two trillion, three hundred thirty-one billion, one million, twenty-one thousand, two hundred thirteen".