2113213001231 has 2 divisors, whose sum is σ = 2113213001232. Its totient is φ = 2113213001230.

The previous prime is 2113213001167. The next prime is 2113213001257. The reversal of 2113213001231 is 1321003123112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2113213001231 - 2⁶ = 2113213001167 is a prime.

It is a super-2 number, since 2×2113213001231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2113213001831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056606500615 + 1056606500616.

It is an arithmetic number, because the mean of its divisors is an integer number (1056606500616).

Almost surely, 2^{2113213001231} is an apocalyptic number.

2113213001231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113213001231 is an equidigital number, since it uses as much as digits as its factorization.

2113213001231 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 20.

Adding to 2113213001231 its reverse (1321003123112), we get a palindrome (3434216124343).

The spelling of 2113213001231 in words is "two trillion, one hundred thirteen billion, two hundred thirteen million, one thousand, two hundred thirty-one".