1403113221 has 6 divisors (see below), whose sum is σ = 2026719110. Its totient is φ = 935408808.

The previous prime is 1403113219. The next prime is 1403113247. The reversal of 1403113221 is 1223113041.

It can be written as a sum of positive squares in only one way, i.e., 1402877025 + 236196 = 37455^2 + 486^2 .

It is not a de Polignac number, because 1403113221 - 2¹ = 1403113219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1403113194 and 1403113203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1403113211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77950726 + ... + 77950743.

Almost surely, 2^1403113221 is an apocalyptic number.

It is an amenable number.

1403113221 is a deficient number, since it is larger than the sum of its proper divisors (623605889).

1403113221 is a wasteful number, since it uses less digits than its factorization.

1403113221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155901475 (or 155901472 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1403113221 is about 37458.1529309708. The cubic root of 1403113221 is about 1119.5175486397.

Adding to 1403113221 its reverse (1223113041), we get a palindrome (2626226262).

The spelling of 1403113221 in words is "one billion, four hundred three million, one hundred thirteen thousand, two hundred twenty-one".