31330543213423 has 2 divisors, whose sum is σ = 31330543213424. Its totient is φ = 31330543213422.

The previous prime is 31330543213373. The next prime is 31330543213427. The reversal of 31330543213423 is 32431234503313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31330543213423 - 2²⁹ = 31330006342511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31330543213427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15665271606711 + 15665271606712.

It is an arithmetic number, because the mean of its divisors is an integer number (15665271606712).

Almost surely, 2^{31330543213423} is an apocalyptic number.

31330543213423 is a deficient number, since it is larger than the sum of its proper divisors (1).

31330543213423 is an equidigital number, since it uses as much as digits as its factorization.

31330543213423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 37.

Adding to 31330543213423 its reverse (32431234503313), we get a palindrome (63761777716736).

The spelling of 31330543213423 in words is "thirty-one trillion, three hundred thirty billion, five hundred forty-three million, two hundred thirteen thousand, four hundred twenty-three".