31212466116 has 24 divisors (see below), whose sum is σ = 78431325504. Its totient is φ = 9603835680.

The previous prime is 31212466099. The next prime is 31212466121. The reversal of 31212466116 is 61166421213.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100039800 + ... + 100040111.

It is an arithmetic number, because the mean of its divisors is an integer number (3267971896).

Almost surely, 2^31212466116 is an apocalyptic number.

It is an amenable number.

31212466116 is an abundant number, since it is smaller than the sum of its proper divisors (47218859388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31212466116 is a wasteful number, since it uses less digits than its factorization.

31212466116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200079931 (or 200079929 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

Adding to 31212466116 its reverse (61166421213), we get a palindrome (92378887329).

The spelling of 31212466116 in words is "thirty-one billion, two hundred twelve million, four hundred sixty-six thousand, one hundred sixteen".