312111013332 has 48 divisors (see below), whose sum is σ = 742728051072. Its totient is φ = 101973855360.

The previous prime is 312111013327. The next prime is 312111013387. The reversal of 312111013332 is 233310111213.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 312111013299 and 312111013308.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 409033 + ... + 889679.

It is an arithmetic number, because the mean of its divisors is an integer number (15473501064).

Almost surely, 2^312111013332 is an apocalyptic number.

It is an amenable number.

312111013332 is an abundant number, since it is smaller than the sum of its proper divisors (430617037740).

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

312111013332 is a wasteful number, since it uses less digits than its factorization.

312111013332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481728 (or 481726 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 312111013332 its reverse (233310111213), we get a palindrome (545421124545).

The spelling of 312111013332 in words is "three hundred twelve billion, one hundred eleven million, thirteen thousand, three hundred thirty-two".