311232243040 has 48 divisors (see below), whose sum is σ = 735382498032. Its totient is φ = 124476588544.

The previous prime is 311232243013. The next prime is 311232243067. The reversal of 311232243040 is 40342232113.

It is an interprime number because it is at equal distance from previous prime (311232243013) and next prime (311232243067).

It is a junction number, because it is equal to n+sod(n) for n = 311232242996 and 311232243014.

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 7 ways as a sum of consecutive naturals, for example, 1136847 + ... + 1383793.

It is an arithmetic number, because the mean of its divisors is an integer number (15320468709).

Almost surely, 2^311232243040 is an apocalyptic number.

It is an amenable number.

311232243040 is an abundant number, since it is smaller than the sum of its proper divisors (424150254992).

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

311232243040 is a wasteful number, since it uses less digits than its factorization.

311232243040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254839 (or 254831 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 311232243040 its reverse (40342232113), we get a palindrome (351574475153).

The spelling of 311232243040 in words is "three hundred eleven billion, two hundred thirty-two million, two hundred forty-three thousand, forty".