213002123 has 2 divisors, whose sum is σ = 213002124. Its totient is φ = 213002122.

The previous prime is 213002089. The next prime is 213002131. The reversal of 213002123 is 321200312.

It is a happy number.

213002123 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 a de Polignac number, because none of the positive numbers 2^k-213002123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213002098 and 213002107.

It is not a weakly prime, because it can be changed into another prime (213002173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106501061 + 106501062.

It is an arithmetic number, because the mean of its divisors is an integer number (106501062).

Almost surely, 2^213002123 is an apocalyptic number.

213002123 is a deficient number, since it is larger than the sum of its proper divisors (1).

213002123 is an equidigital number, since it uses as much as digits as its factorization.

213002123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 213002123 is about 14594.5922519267. The cubic root of 213002123 is about 597.2112461314.

Adding to 213002123 its reverse (321200312), we get a palindrome (534202435).

The spelling of 213002123 in words is "two hundred thirteen million, two thousand, one hundred twenty-three".