1001112101503 has 2 divisors, whose sum is σ = 1001112101504. Its totient is φ = 1001112101502.

The previous prime is 1001112101501. The next prime is 1001112101519. The reversal of 1001112101503 is 3051012111001.

It is a happy number.

It is an a-pointer prime, because the next prime (1001112101519) can be obtained adding 1001112101503 to its sum of digits (16).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1001112101503 - 2¹ = 1001112101501 is a prime.

Together with 1001112101501, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001112101501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500556050751 + 500556050752.

It is an arithmetic number, because the mean of its divisors is an integer number (500556050752).

Almost surely, 2^{1001112101503} is an apocalyptic number.

1001112101503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001112101503 is an equidigital number, since it uses as much as digits as its factorization.

1001112101503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30, while the sum is 16.

Adding to 1001112101503 its reverse (3051012111001), we get a palindrome (4052124212504).

The spelling of 1001112101503 in words is "one trillion, one billion, one hundred twelve million, one hundred one thousand, five hundred three".