311133220133332 has 48 divisors (see below), whose sum is σ = 562309959794688. Its totient is φ = 150477938724960.

The previous prime is 311133220133249. The next prime is 311133220133389. The reversal of 311133220133332 is 233331022331113.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 311133220133294 and 311133220133303.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3131102713 + ... + 3131202079.

It is an arithmetic number, because the mean of its divisors is an integer number (11714790829056).

Almost surely, 2^{311133220133332} is an apocalyptic number.

It is an amenable number.

311133220133332 is a deficient number, since it is larger than the sum of its proper divisors (251176739661356).

311133220133332 is a wasteful number, since it uses less digits than its factorization.

311133220133332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110956 (or 110954 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 31.

Adding to 311133220133332 its reverse (233331022331113), we get a palindrome (544464242464445).

The spelling of 311133220133332 in words is "three hundred eleven trillion, one hundred thirty-three billion, two hundred twenty million, one hundred thirty-three thousand, three hundred thirty-two".