213326051 has 4 divisors (see below), whose sum is σ = 214113504. Its totient is φ = 212538600.

The previous prime is 213326041. The next prime is 213326077. The reversal of 213326051 is 150623312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213326051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213326041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393320 + ... + 393861.

It is an arithmetic number, because the mean of its divisors is an integer number (53528376).

Almost surely, 2^213326051 is an apocalyptic number.

213326051 is a deficient number, since it is larger than the sum of its proper divisors (787453).

213326051 is an equidigital number, since it uses as much as digits as its factorization.

213326051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787452.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 213326051 is about 14605.6855710371. The cubic root of 213326051 is about 597.5138338213.

Adding to 213326051 its reverse (150623312), we get a palindrome (363949363).

The spelling of 213326051 in words is "two hundred thirteen million, three hundred twenty-six thousand, fifty-one".