1001403120103 has 2 divisors, whose sum is σ = 1001403120104. Its totient is φ = 1001403120102.

The previous prime is 1001403120097. The next prime is 1001403120131. The reversal of 1001403120103 is 3010213041001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1001403120103 - 2³⁷ = 863964166631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001403120503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500701560051 + 500701560052.

It is an arithmetic number, because the mean of its divisors is an integer number (500701560052).

Almost surely, 2^{1001403120103} is an apocalyptic number.

1001403120103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001403120103 is an equidigital number, since it uses as much as digits as its factorization.

1001403120103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1001403120103 its reverse (3010213041001), we get a palindrome (4011616161104).

The spelling of 1001403120103 in words is "one trillion, one billion, four hundred three million, one hundred twenty thousand, one hundred three".