31340221223 has 2 divisors, whose sum is σ = 31340221224. Its totient is φ = 31340221222.

The previous prime is 31340221217. The next prime is 31340221229. The reversal of 31340221223 is 32212204313.

It is a balanced prime because it is at equal distance from previous prime (31340221217) and next prime (31340221229).

It is a cyclic number.

It is not a de Polignac number, because 31340221223 - 2¹² = 31340217127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31340221229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15670110611 + 15670110612.

It is an arithmetic number, because the mean of its divisors is an integer number (15670110612).

Almost surely, 2^31340221223 is an apocalyptic number.

31340221223 is a deficient number, since it is larger than the sum of its proper divisors (1).

31340221223 is an equidigital number, since it uses as much as digits as its factorization.

31340221223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 31340221223 its reverse (32212204313), we get a palindrome (63552425536).

The spelling of 31340221223 in words is "thirty-one billion, three hundred forty million, two hundred twenty-one thousand, two hundred twenty-three".