1403104321021 has 16 divisors (see below), whose sum is σ = 1547496892480. Its totient is φ = 1263972003840.

The previous prime is 1403104321019. The next prime is 1403104321033. The reversal of 1403104321021 is 1201234013041.

It is not a de Polignac number, because 1403104321021 - 2¹ = 1403104321019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1403104320983 and 1403104321001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1403104321081) 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, 417156 + ... + 1726333.

It is an arithmetic number, because the mean of its divisors is an integer number (96718555780).

Almost surely, 2^{1403104321021} is an apocalyptic number.

It is an amenable number.

1403104321021 is a deficient number, since it is larger than the sum of its proper divisors (144392571459).

1403104321021 is a wasteful number, since it uses less digits than its factorization.

1403104321021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144716.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1403104321021 its reverse (1201234013041), we get a palindrome (2604338334062).

The spelling of 1403104321021 in words is "one trillion, four hundred three billion, one hundred four million, three hundred twenty-one thousand, twenty-one".