31423223003 has 2 divisors, whose sum is σ = 31423223004. Its totient is φ = 31423223002.

The previous prime is 31423222951. The next prime is 31423223071. The reversal of 31423223003 is 30032232413.

It is a weak prime.

It is an emirp because it is prime and its reverse (30032232413) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31423223003 - 2¹⁸ = 31422960859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31423223003.

It is not a weakly prime, because it can be changed into another prime (31423223603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15711611501 + 15711611502.

It is an arithmetic number, because the mean of its divisors is an integer number (15711611502).

Almost surely, 2^31423223003 is an apocalyptic number.

31423223003 is a deficient number, since it is larger than the sum of its proper divisors (1).

31423223003 is an equidigital number, since it uses as much as digits as its factorization.

31423223003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 31423223003 its reverse (30032232413), we get a palindrome (61455455416).

The spelling of 31423223003 in words is "thirty-one billion, four hundred twenty-three million, two hundred twenty-three thousand, three".