1003400403423 has 16 divisors (see below), whose sum is σ = 1459553742336. Its totient is φ = 608095520640.

The previous prime is 1003400403403. The next prime is 1003400403427. The reversal of 1003400403423 is 3243040043001.

It is not a de Polignac number, because 1003400403423 - 2²¹ = 1003398306271 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1003400403393 and 1003400403402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003400403427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151815 + ... + 1424727.

It is an arithmetic number, because the mean of its divisors is an integer number (91222108896).

Almost surely, 2^{1003400403423} is an apocalyptic number.

1003400403423 is a deficient number, since it is larger than the sum of its proper divisors (456153338913).

1003400403423 is a wasteful number, since it uses less digits than its factorization.

1003400403423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296814.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 1003400403423 its reverse (3243040043001), we get a palindrome (4246440446424).

The spelling of 1003400403423 in words is "one trillion, three billion, four hundred million, four hundred three thousand, four hundred twenty-three".