12356902213 has 2 divisors, whose sum is σ = 12356902214. Its totient is φ = 12356902212.

The previous prime is 12356902171. The next prime is 12356902223. The reversal of 12356902213 is 31220965321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6461426689 + 5895475524 = 80383^2 + 76782^2 .

It is a cyclic number.

It is not a de Polignac number, because 12356902213 - 2²¹ = 12354805061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12356902223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6178451106 + 6178451107.

It is an arithmetic number, because the mean of its divisors is an integer number (6178451107).

Almost surely, 2^12356902213 is an apocalyptic number.

It is an amenable number.

12356902213 is a deficient number, since it is larger than the sum of its proper divisors (1).

12356902213 is an equidigital number, since it uses as much as digits as its factorization.

12356902213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 34.

The spelling of 12356902213 in words is "twelve billion, three hundred fifty-six million, nine hundred two thousand, two hundred thirteen".