213553423 has 2 divisors, whose sum is σ = 213553424. Its totient is φ = 213553422.

The previous prime is 213553399. The next prime is 213553433. The reversal of 213553423 is 324355312.

213553423 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 213553423 - 2¹³ = 213545231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213553391 and 213553400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213553433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106776711 + 106776712.

It is an arithmetic number, because the mean of its divisors is an integer number (106776712).

Almost surely, 2^213553423 is an apocalyptic number.

213553423 is a deficient number, since it is larger than the sum of its proper divisors (1).

213553423 is an equidigital number, since it uses as much as digits as its factorization.

213553423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 28.

The square root of 213553423 is about 14613.4671792836. The cubic root of 213553423 is about 597.7260436844.

The spelling of 213553423 in words is "two hundred thirteen million, five hundred fifty-three thousand, four hundred twenty-three".