103403001221 has 8 divisors (see below), whose sum is σ = 111466159224. Its totient is φ = 95355426240.

The previous prime is 103403001139. The next prime is 103403001263. The reversal of 103403001221 is 122100304301.

It can be written as a sum of positive squares in 4 ways, for example, as 3148444321 + 100254556900 = 56111^2 + 316630^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103403001221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103403001221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103403001271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3881966 + ... + 3908511.

It is an arithmetic number, because the mean of its divisors is an integer number (13933269903).

Almost surely, 2^103403001221 is an apocalyptic number.

It is an amenable number.

103403001221 is a deficient number, since it is larger than the sum of its proper divisors (8063158003).

103403001221 is a wasteful number, since it uses less digits than its factorization.

103403001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7791511.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 103403001221 its reverse (122100304301), we get a palindrome (225503305522).

The spelling of 103403001221 in words is "one hundred three billion, four hundred three million, one thousand, two hundred twenty-one".