31113001303 has 2 divisors, whose sum is σ = 31113001304. Its totient is φ = 31113001302.

The previous prime is 31113001253. The next prime is 31113001319. The reversal of 31113001303 is 30310031113.

It is an a-pointer prime, because the next prime (31113001319) can be obtained adding 31113001303 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31113001303 - 2¹³ = 31112993111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31113031303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15556500651 + 15556500652.

It is an arithmetic number, because the mean of its divisors is an integer number (15556500652).

Almost surely, 2^31113001303 is an apocalyptic number.

31113001303 is a deficient number, since it is larger than the sum of its proper divisors (1).

31113001303 is an equidigital number, since it uses as much as digits as its factorization.

31113001303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81, while the sum is 16.

Adding to 31113001303 its reverse (30310031113), we get a palindrome (61423032416).

The spelling of 31113001303 in words is "thirty-one billion, one hundred thirteen million, one thousand, three hundred three".