31503341323 has 2 divisors, whose sum is σ = 31503341324. Its totient is φ = 31503341322.

The previous prime is 31503341321. The next prime is 31503341341. The reversal of 31503341323 is 32314330513.

It is a weak prime.

It is an emirp because it is prime and its reverse (32314330513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31503341323 - 2¹ = 31503341321 is a prime.

Together with 31503341321, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 31503341291 and 31503341300.

It is not a weakly prime, because it can be changed into another prime (31503341321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15751670661 + 15751670662.

It is an arithmetic number, because the mean of its divisors is an integer number (15751670662).

Almost surely, 2^31503341323 is an apocalyptic number.

31503341323 is a deficient number, since it is larger than the sum of its proper divisors (1).

31503341323 is an equidigital number, since it uses as much as digits as its factorization.

31503341323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 28.

Adding to 31503341323 its reverse (32314330513), we get a palindrome (63817671836).

The spelling of 31503341323 in words is "thirty-one billion, five hundred three million, three hundred forty-one thousand, three hundred twenty-three".