31120002022 has 32 divisors (see below), whose sum is σ = 48742917120. Its totient is φ = 14882797440.

The previous prime is 31120002019. The next prime is 31120002029. The reversal of 31120002022 is 22020002113.

It is a junction number, because it is equal to n+sod(n) for n = 31120001993 and 31120002011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31120002029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5573272 + ... + 5578852.

It is an arithmetic number, because the mean of its divisors is an integer number (1523216160).

Almost surely, 2^31120002022 is an apocalyptic number.

31120002022 is a deficient number, since it is larger than the sum of its proper divisors (17622915098).

31120002022 is a wasteful number, since it uses less digits than its factorization.

31120002022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6496.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 31120002022 its reverse (22020002113), we get a palindrome (53140004135).

Subtracting from 31120002022 its reverse (22020002113), we obtain a palindrome (9099999909).

The spelling of 31120002022 in words is "thirty-one billion, one hundred twenty million, two thousand, twenty-two".