31143102122 has 16 divisors (see below), whose sum is σ = 53643621600. Its totient is φ = 13410905040.

The previous prime is 31143102121. The next prime is 31143102149. The reversal of 31143102122 is 22120134113.

It is a junction number, because it is equal to n+sod(n) for n = 31143102094 and 31143102103.

It is not an unprimeable number, because it can be changed into a prime (31143102121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37252097 + ... + 37252932.

It is an arithmetic number, because the mean of its divisors is an integer number (3352726350).

Almost surely, 2^31143102122 is an apocalyptic number.

31143102122 is a deficient number, since it is larger than the sum of its proper divisors (22500519478).

31143102122 is a wasteful number, since it uses less digits than its factorization.

31143102122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74505061.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31143102122 its reverse (22120134113), we get a palindrome (53263236235).

The spelling of 31143102122 in words is "thirty-one billion, one hundred forty-three million, one hundred two thousand, one hundred twenty-two".