213003013231 has 2 divisors, whose sum is σ = 213003013232. Its totient is φ = 213003013230.

The previous prime is 213003013219. The next prime is 213003013261. The reversal of 213003013231 is 132310300312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213003013231 - 2⁵ = 213003013199 is a prime.

It is a super-2 number, since 2×213003013231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213003013199 and 213003013208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213003013261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106501506615 + 106501506616.

It is an arithmetic number, because the mean of its divisors is an integer number (106501506616).

Almost surely, 2^213003013231 is an apocalyptic number.

213003013231 is a deficient number, since it is larger than the sum of its proper divisors (1).

213003013231 is an equidigital number, since it uses as much as digits as its factorization.

213003013231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 213003013231 its reverse (132310300312), we get a palindrome (345313313543).

The spelling of 213003013231 in words is "two hundred thirteen billion, three million, thirteen thousand, two hundred thirty-one".