31023201122 has 16 divisors (see below), whose sum is σ = 47680126200. Its totient is φ = 15129989760.

The previous prime is 31023201023. The next prime is 31023201127. The reversal of 31023201122 is 22110232013.

It can be written as a sum of positive squares in 4 ways, for example, as 30873652681 + 149548441 = 175709^2 + 12229^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31023201122.

It is not an unprimeable number, because it can be changed into a prime (31023201127) by changing a digit.

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, 364004 + ... + 441072.

Almost surely, 2^31023201122 is an apocalyptic number.

31023201122 is a deficient number, since it is larger than the sum of its proper divisors (16656925078).

31023201122 is a wasteful number, since it uses less digits than its factorization.

31023201122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82021.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31023201122 its reverse (22110232013), we get a palindrome (53133433135).

The spelling of 31023201122 in words is "thirty-one billion, twenty-three million, two hundred one thousand, one hundred twenty-two".