31103022020022 has 12 divisors (see below), whose sum is σ = 67389881043420. Its totient is φ = 10367674006668.

The previous prime is 31103022020017. The next prime is 31103022020029. The reversal of 31103022020022 is 22002022030113.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1727945667779 = 31103022020022 / (3 + 1 + 1 + 0 + 3 + 0 + 2 + 2 + 0 + 2 + 0 + 0 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 31103022019977 and 31103022020004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31103022020029) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 863972833872 + ... + 863972833907.

It is an arithmetic number, because the mean of its divisors is an integer number (5615823420285).

Almost surely, 2^{31103022020022} is an apocalyptic number.

31103022020022 is an abundant number, since it is smaller than the sum of its proper divisors (36286859023398).

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

31103022020022 is a wasteful number, since it uses less digits than its factorization.

31103022020022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727945667787 (or 1727945667784 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 31103022020022 its reverse (22002022030113), we get a palindrome (53105044050135).

The spelling of 31103022020022 in words is "thirty-one trillion, one hundred three billion, twenty-two million, twenty thousand, twenty-two".