1003402234221 has 4 divisors (see below), whose sum is σ = 1337869645632. Its totient is φ = 668934822812.

The previous prime is 1003402234199. The next prime is 1003402234253. The reversal of 1003402234221 is 1224322043001.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 1003402234221 - 2³⁰ = 1002328492397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1003402234191 and 1003402234200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003402234291) 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, 167233705701 + ... + 167233705706.

It is an arithmetic number, because the mean of its divisors is an integer number (334467411408).

Almost surely, 2^{1003402234221} is an apocalyptic number.

It is an amenable number.

1003402234221 is a deficient number, since it is larger than the sum of its proper divisors (334467411411).

1003402234221 is an equidigital number, since it uses as much as digits as its factorization.

1003402234221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334467411410.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1003402234221 its reverse (1224322043001), we get a palindrome (2227724277222).

The spelling of 1003402234221 in words is "one trillion, three billion, four hundred two million, two hundred thirty-four thousand, two hundred twenty-one".