31133311122 has 32 divisors (see below), whose sum is σ = 63880141248. Its totient is φ = 10112276736.

The previous prime is 31133311093. The next prime is 31133311141. The reversal of 31133311122 is 22111333113.

It is a happy number.

It is a super-2 number, since 2×31133311122² (a number of 22 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

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 15 ways as a sum of consecutive naturals, for example, 391843 + ... + 464550.

It is an arithmetic number, because the mean of its divisors is an integer number (1996254414).

Almost surely, 2^31133311122 is an apocalyptic number.

31133311122 is an abundant number, since it is smaller than the sum of its proper divisors (32746830126).

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

31133311122 is a wasteful number, since it uses less digits than its factorization.

31133311122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856554.

The product of its digits is 324, while the sum is 21.

Adding to 31133311122 its reverse (22111333113), we get a palindrome (53244644235).

The spelling of 31133311122 in words is "thirty-one billion, one hundred thirty-three million, three hundred eleven thousand, one hundred twenty-two".