31003241312 has 12 divisors (see below), whose sum is σ = 61037631396. Its totient is φ = 15501620640.

The previous prime is 31003241303. The next prime is 31003241371. The reversal of 31003241312 is 21314230013.

It is a super-2 number, since 2×31003241312² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 484425614 + ... + 484425677.

It is an arithmetic number, because the mean of its divisors is an integer number (5086469283).

Almost surely, 2^31003241312 is an apocalyptic number.

31003241312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31003241312 is a deficient number, since it is larger than the sum of its proper divisors (30034390084).

31003241312 is an equidigital number, since it uses as much as digits as its factorization.

31003241312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968851301 (or 968851293 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31003241312 its reverse (21314230013), we get a palindrome (52317471325).

The spelling of 31003241312 in words is "thirty-one billion, three million, two hundred forty-one thousand, three hundred twelve".