31020003012311 has 2 divisors, whose sum is σ = 31020003012312. Its totient is φ = 31020003012310.

The previous prime is 31020003012293. The next prime is 31020003012359. The reversal of 31020003012311 is 11321030002013.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31020003012311 - 2³⁸ = 30745125105367 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31020003012311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31020003014311) 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, 15510001506155 + 15510001506156.

It is an arithmetic number, because the mean of its divisors is an integer number (15510001506156).

Almost surely, 2^{31020003012311} is an apocalyptic number.

31020003012311 is a deficient number, since it is larger than the sum of its proper divisors (1).

31020003012311 is an equidigital number, since it uses as much as digits as its factorization.

31020003012311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31020003012311 its reverse (11321030002013), we get a palindrome (42341033014324).

The spelling of 31020003012311 in words is "thirty-one trillion, twenty billion, three million, twelve thousand, three hundred eleven".