312011234043440 has 40 divisors (see below), whose sum is σ = 725427811530960. Its totient is φ = 124804202455296.

The previous prime is 312011234043413. The next prime is 312011234043479. The reversal of 312011234043440 is 44340432110213.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 312011234043397 and 312011234043406.

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 in 7 ways as a sum of consecutive naturals, for example, 31755851 + ... + 40403669.

It is an arithmetic number, because the mean of its divisors is an integer number (18135695288274).

Almost surely, 2^{312011234043440} is an apocalyptic number.

It is an amenable number.

312011234043440 is an abundant number, since it is smaller than the sum of its proper divisors (413416577487520).

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

312011234043440 is a wasteful number, since it uses less digits than its factorization.

312011234043440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9098829 (or 9098823 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 312011234043440 its reverse (44340432110213), we get a palindrome (356351666153653).

The spelling of 312011234043440 in words is "three hundred twelve trillion, eleven billion, two hundred thirty-four million, forty-three thousand, four hundred forty".