1001310421403 has 4 divisors (see below), whose sum is σ = 1007098343088. Its totient is φ = 995522499720.

The previous prime is 1001310421381. The next prime is 1001310421439. The reversal of 1001310421403 is 3041240131001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1001310421403 - 2²² = 1001306227099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001310421003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2893960583 + ... + 2893960928.

It is an arithmetic number, because the mean of its divisors is an integer number (251774585772).

Almost surely, 2^{1001310421403} is an apocalyptic number.

1001310421403 is a deficient number, since it is larger than the sum of its proper divisors (5787921685).

1001310421403 is an equidigital number, since it uses as much as digits as its factorization.

1001310421403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5787921684.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1001310421403 its reverse (3041240131001), we get a palindrome (4042550552404).

The spelling of 1001310421403 in words is "one trillion, one billion, three hundred ten million, four hundred twenty-one thousand, four hundred three".