22403120312 has 8 divisors (see below), whose sum is σ = 42005850600. Its totient is φ = 11201560152.

The previous prime is 22403120303. The next prime is 22403120371. The reversal of 22403120312 is 21302130422.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

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, 1400195012 + ... + 1400195027.

It is an arithmetic number, because the mean of its divisors is an integer number (5250731325).

Almost surely, 2^22403120312 is an apocalyptic number.

It is an amenable number.

22403120312 is a deficient number, since it is larger than the sum of its proper divisors (19602730288).

22403120312 is a wasteful number, since it uses less digits than its factorization.

22403120312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2800390045 (or 2800390041 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22403120312 its reverse (21302130422), we get a palindrome (43705250734).

The spelling of 22403120312 in words is "twenty-two billion, four hundred three million, one hundred twenty thousand, three hundred twelve".