9903122312 has 8 divisors (see below), whose sum is σ = 18568354350. Its totient is φ = 4951561152.

The previous prime is 9903122311. The next prime is 9903122347. The reversal of 9903122312 is 2132213099.

It can be written as a sum of positive squares in only one way, i.e., 7648202116 + 2254920196 = 87454^2 + 47486^2 .

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

It is not an unprimeable number, because it can be changed into a prime (9903122311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 618945137 + ... + 618945152.

Almost surely, 2^9903122312 is an apocalyptic number.

It is an amenable number.

9903122312 is a deficient number, since it is larger than the sum of its proper divisors (8665232038).

9903122312 is a wasteful number, since it uses less digits than its factorization.

9903122312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237890295 (or 1237890291 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 9903122312 is about 99514.4326818980. The cubic root of 9903122312 is about 2147.4548799520.

The spelling of 9903122312 in words is "nine billion, nine hundred three million, one hundred twenty-two thousand, three hundred twelve".