1023113213 has 2 divisors, whose sum is σ = 1023113214. Its totient is φ = 1023113212.

The previous prime is 1023113149. The next prime is 1023113251. The reversal of 1023113213 is 3123113201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1006031524 + 17081689 = 31718^2 + 4133^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023113213 - 2⁶ = 1023113149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1023113191 and 1023113200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023112213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511556606 + 511556607.

It is an arithmetic number, because the mean of its divisors is an integer number (511556607).

Almost surely, 2^1023113213 is an apocalyptic number.

It is an amenable number.

1023113213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023113213 is an equidigital number, since it uses as much as digits as its factorization.

1023113213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1023113213 is about 31986.1409519811. The cubic root of 1023113213 is about 1007.6457971330.

Adding to 1023113213 its reverse (3123113201), we get a palindrome (4146226414).

The spelling of 1023113213 in words is "one billion, twenty-three million, one hundred thirteen thousand, two hundred thirteen".