215003423 has 2 divisors, whose sum is σ = 215003424. Its totient is φ = 215003422.

The previous prime is 215003413. The next prime is 215003429. The reversal of 215003423 is 324300512.

It is a happy number.

215003423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 215003423 - 2⁶ = 215003359 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 215003395 and 215003404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215003429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107501711 + 107501712.

It is an arithmetic number, because the mean of its divisors is an integer number (107501712).

Almost surely, 2^215003423 is an apocalyptic number.

215003423 is a deficient number, since it is larger than the sum of its proper divisors (1).

215003423 is an equidigital number, since it uses as much as digits as its factorization.

215003423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 215003423 is about 14662.9950214818. The cubic root of 215003423 is about 599.0758207372.

Adding to 215003423 its reverse (324300512), we get a palindrome (539303935).

The spelling of 215003423 in words is "two hundred fifteen million, three thousand, four hundred twenty-three".