113203112213 has 2 divisors, whose sum is σ = 113203112214. Its totient is φ = 113203112212.

The previous prime is 113203112069. The next prime is 113203112233. The reversal of 113203112213 is 312211302311.

It is a happy number.

It is an a-pointer prime, because the next prime (113203112233) can be obtained adding 113203112213 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103319173489 + 9883938724 = 321433^2 + 99418^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113203112213 is a prime.

It is a super-2 number, since 2×113203112213² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113203112233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56601556106 + 56601556107.

It is an arithmetic number, because the mean of its divisors is an integer number (56601556107).

Almost surely, 2^113203112213 is an apocalyptic number.

It is an amenable number.

113203112213 is a deficient number, since it is larger than the sum of its proper divisors (1).

113203112213 is an equidigital number, since it uses as much as digits as its factorization.

113203112213 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 113203112213 its reverse (312211302311), we get a palindrome (425414414524).

The spelling of 113203112213 in words is "one hundred thirteen billion, two hundred three million, one hundred twelve thousand, two hundred thirteen".