2403403121001 has 4 divisors (see below), whose sum is σ = 3204537494672. Its totient is φ = 1602268747332.

The previous prime is 2403403120931. The next prime is 2403403121003. The reversal of 2403403121001 is 1001213043042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2403403121001 - 2¹³ = 2403403112809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2403403121003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400567186831 + ... + 400567186836.

It is an arithmetic number, because the mean of its divisors is an integer number (801134373668).

Almost surely, 2^{2403403121001} is an apocalyptic number.

It is an amenable number.

2403403121001 is a deficient number, since it is larger than the sum of its proper divisors (801134373671).

2403403121001 is an equidigital number, since it uses as much as digits as its factorization.

2403403121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801134373670.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 2403403121001 its reverse (1001213043042), we get a palindrome (3404616164043).

The spelling of 2403403121001 in words is "two trillion, four hundred three billion, four hundred three million, one hundred twenty-one thousand, one".