20003103122312 has 8 divisors (see below), whose sum is σ = 37505818354350. Its totient is φ = 10001551561152.

The previous prime is 20003103122293. The next prime is 20003103122339. The reversal of 20003103122312 is 21322130130002.

It can be written as a sum of positive squares in only one way, i.e., 13248333310276 + 6754769812036 = 3639826^2 + 2598994^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250193945137 + ... + 1250193945152.

Almost surely, 2^{20003103122312} is an apocalyptic number.

It is an amenable number.

20003103122312 is a deficient number, since it is larger than the sum of its proper divisors (17502715232038).

20003103122312 is a wasteful number, since it uses less digits than its factorization.

20003103122312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500387890295 (or 2500387890291 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20003103122312 its reverse (21322130130002), we get a palindrome (41325233252314).

The spelling of 20003103122312 in words is "twenty trillion, three billion, one hundred three million, one hundred twenty-two thousand, three hundred twelve".