61323211 has 2 divisors, whose sum is σ = 61323212. Its totient is φ = 61323210.

The previous prime is 61323209. The next prime is 61323217. The reversal of 61323211 is 11232316.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61323211 - 2¹ = 61323209 is a prime.

Together with 61323209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (61323217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30661605 + 30661606.

It is an arithmetic number, because the mean of its divisors is an integer number (30661606).

Almost surely, 2^61323211 is an apocalyptic number.

61323211 is a deficient number, since it is larger than the sum of its proper divisors (1).

61323211 is an equidigital number, since it uses as much as digits as its factorization.

61323211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 19.

The square root of 61323211 is about 7830.9138036375. The cubic root of 61323211 is about 394.3437503525.

Adding to 61323211 its reverse (11232316), we get a palindrome (72555527).

The spelling of 61323211 in words is "sixty-one million, three hundred twenty-three thousand, two hundred eleven".