311783037122 has 54 divisors (see below), whose sum is σ = 487411465779. Its totient is φ = 149577776040.

The previous prime is 311783037113. The next prime is 311783037179. The reversal of 311783037122 is 221730387113.

It can be written as a sum of positive squares in only one way, i.e., 155891518561 + 155891518561 = 394831^2 + 394831^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=394831.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3756422093 + ... + 3756422175.

Almost surely, 2^311783037122 is an apocalyptic number.

311783037122 is a deficient number, since it is larger than the sum of its proper divisors (175628428657).

311783037122 is an frugal number, since it uses more digits than its factorization.

311783037122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The spelling of 311783037122 in words is "three hundred eleven billion, seven hundred eighty-three million, thirty-seven thousand, one hundred twenty-two".