31120002322 has 4 divisors (see below), whose sum is σ = 46680003486. Its totient is φ = 15560001160.

The previous prime is 31120002313. The next prime is 31120002337. The reversal of 31120002322 is 22320002113.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22123290121 + 8996712201 = 148739^2 + 94851^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31120002296 and 31120002305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7780000579 + ... + 7780000582.

Almost surely, 2^31120002322 is an apocalyptic number.

31120002322 is a deficient number, since it is larger than the sum of its proper divisors (15560001164).

31120002322 is a wasteful number, since it uses less digits than its factorization.

31120002322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15560001163.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 31120002322 its reverse (22320002113), we get a palindrome (53440004435).

The spelling of 31120002322 in words is "thirty-one billion, one hundred twenty million, two thousand, three hundred twenty-two".