31323003002012 has 12 divisors (see below), whose sum is σ = 55713865995816. Its totient is φ = 15404755574640.

The previous prime is 31323003002009. The next prime is 31323003002017. The reversal of 31323003002012 is 21020030032313.

It is a super-2 number, since 2×31323003002012² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31323003002017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64186481318 + ... + 64186481805.

It is an arithmetic number, because the mean of its divisors is an integer number (4642822166318).

Almost surely, 2^{31323003002012} is an apocalyptic number.

It is an amenable number.

31323003002012 is a deficient number, since it is larger than the sum of its proper divisors (24390862993804).

31323003002012 is a wasteful number, since it uses less digits than its factorization.

31323003002012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128372963188 (or 128372963186 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31323003002012 its reverse (21020030032313), we get a palindrome (52343033034325).

The spelling of 31323003002012 in words is "thirty-one trillion, three hundred twenty-three billion, three million, two thousand, twelve".