31003212412 has 12 divisors (see below), whose sum is σ = 54298724760. Its totient is φ = 15489291056.

The previous prime is 31003212367. The next prime is 31003212421. The reversal of 31003212412 is 21421230013.

It is a happy number.

It is a super-2 number, since 2×31003212412² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31003212412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3073123 + ... + 3083194.

It is an arithmetic number, because the mean of its divisors is an integer number (4524893730).

Almost surely, 2^31003212412 is an apocalyptic number.

It is an amenable number.

31003212412 is a deficient number, since it is larger than the sum of its proper divisors (23295512348).

31003212412 is a wasteful number, since it uses less digits than its factorization.

31003212412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6157580 (or 6157578 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 31003212412 its reverse (21421230013), we get a palindrome (52424442425).

The spelling of 31003212412 in words is "thirty-one billion, three million, two hundred twelve thousand, four hundred twelve".