311302131332 has 12 divisors (see below), whose sum is σ = 551674663680. Its totient is φ = 153680798856.

The previous prime is 311302131317. The next prime is 311302131383. The reversal of 311302131332 is 233131203113.

It is a junction number, because it is equal to n+sod(n) for n = 311302131298 and 311302131307.

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 3 ways as a sum of consecutive naturals, for example, 492566348 + ... + 492566979.

It is an arithmetic number, because the mean of its divisors is an integer number (45972888640).

Almost surely, 2^311302131332 is an apocalyptic number.

It is an amenable number.

311302131332 is a deficient number, since it is larger than the sum of its proper divisors (240372532348).

311302131332 is a wasteful number, since it uses less digits than its factorization.

311302131332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985133410 (or 985133408 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 311302131332 its reverse (233131203113), we get a palindrome (544433334445).

The spelling of 311302131332 in words is "three hundred eleven billion, three hundred two million, one hundred thirty-one thousand, three hundred thirty-two".