2136210623 has 2 divisors, whose sum is σ = 2136210624. Its totient is φ = 2136210622.

The previous prime is 2136210617. The next prime is 2136210683. The reversal of 2136210623 is 3260126312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2136210623 - 2²⁰ = 2135162047 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 2136210592 and 2136210601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2136210683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068105311 + 1068105312.

It is an arithmetic number, because the mean of its divisors is an integer number (1068105312).

Almost surely, 2^2136210623 is an apocalyptic number.

2136210623 is a deficient number, since it is larger than the sum of its proper divisors (1).

2136210623 is an equidigital number, since it uses as much as digits as its factorization.

2136210623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 2136210623 is about 46219.1586141505. The cubic root of 2136210623 is about 1287.8976679417.

Adding to 2136210623 its reverse (3260126312), we get a palindrome (5396336935).

The spelling of 2136210623 in words is "two billion, one hundred thirty-six million, two hundred ten thousand, six hundred twenty-three".