213331051 has 2 divisors, whose sum is σ = 213331052. Its totient is φ = 213331050.

The previous prime is 213331043. The next prime is 213331061. The reversal of 213331051 is 150133312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213331051 - 2³ = 213331043 is a prime.

It is not a weakly prime, because it can be changed into another prime (213331061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106665525 + 106665526.

It is an arithmetic number, because the mean of its divisors is an integer number (106665526).

Almost surely, 2^213331051 is an apocalyptic number.

213331051 is a deficient number, since it is larger than the sum of its proper divisors (1).

213331051 is an equidigital number, since it uses as much as digits as its factorization.

213331051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 213331051 is about 14605.8567362548. The cubic root of 213331051 is about 597.5185020210.

Adding to 213331051 its reverse (150133312), we get a palindrome (363464363).

The spelling of 213331051 in words is "two hundred thirteen million, three hundred thirty-one thousand, fifty-one".