31311012012003 has 6 divisors (see below), whose sum is σ = 45227017350684. Its totient is φ = 20874008007996.

The previous prime is 31311012011969. The next prime is 31311012012029. The reversal of 31311012012003 is 30021021011313.

31311012012003 is a `hidden beast` number, since 31 + 311 + 0 + 120 + 1 + 200 + 3 = 666.

It is not a de Polignac number, because 31311012012003 - 2¹⁷ = 31311011880931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31311012012043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1739500667325 + ... + 1739500667342.

It is an arithmetic number, because the mean of its divisors is an integer number (7537836225114).

Almost surely, 2^{31311012012003} is an apocalyptic number.

31311012012003 is a deficient number, since it is larger than the sum of its proper divisors (13916005338681).

31311012012003 is a wasteful number, since it uses less digits than its factorization.

31311012012003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3479001334673 (or 3479001334670 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 31311012012003 its reverse (30021021011313), we get a palindrome (61332033023316).

The spelling of 31311012012003 in words is "thirty-one trillion, three hundred eleven billion, twelve million, twelve thousand, three".