31023321103 has 2 divisors, whose sum is σ = 31023321104. Its totient is φ = 31023321102.

The previous prime is 31023321101. The next prime is 31023321107. The reversal of 31023321103 is 30112332013.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31023321103 - 2¹ = 31023321101 is a prime.

Together with 31023321101, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31023321101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15511660551 + 15511660552.

It is an arithmetic number, because the mean of its divisors is an integer number (15511660552).

Almost surely, 2^31023321103 is an apocalyptic number.

31023321103 is a deficient number, since it is larger than the sum of its proper divisors (1).

31023321103 is an equidigital number, since it uses as much as digits as its factorization.

31023321103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 31023321103 its reverse (30112332013), we get a palindrome (61135653116).

The spelling of 31023321103 in words is "thirty-one billion, twenty-three million, three hundred twenty-one thousand, one hundred three".