1122403001 has 4 divisors (see below), whose sum is σ = 1133516004. Its totient is φ = 1111290000.

The previous prime is 1122402991. The next prime is 1122403021. The reversal of 1122403001 is 1003042211.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1091311225 + 31091776 = 33035^2 + 5576^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122403001 - 2²² = 1118208697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122403021) 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, 5556350 + ... + 5556551.

It is an arithmetic number, because the mean of its divisors is an integer number (283379001).

Almost surely, 2^1122403001 is an apocalyptic number.

It is an amenable number.

1122403001 is a deficient number, since it is larger than the sum of its proper divisors (11113003).

1122403001 is a wasteful number, since it uses less digits than its factorization.

1122403001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11113002.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1122403001 is about 33502.2835191872. The cubic root of 1122403001 is about 1039.2410022421.

Adding to 1122403001 its reverse (1003042211), we get a palindrome (2125445212).

The spelling of 1122403001 in words is "one billion, one hundred twenty-two million, four hundred three thousand, one".