11203122001 has 2 divisors, whose sum is σ = 11203122002. Its totient is φ = 11203122000.

The previous prime is 11203121987. The next prime is 11203122083. The reversal of 11203122001 is 10022130211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9144140625 + 2058981376 = 95625^2 + 45376^2 .

It is a cyclic number.

It is not a de Polignac number, because 11203122001 - 2¹⁹ = 11202597713 is a prime.

It is not a weakly prime, because it can be changed into another prime (11203120001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5601561000 + 5601561001.

It is an arithmetic number, because the mean of its divisors is an integer number (5601561001).

Almost surely, 2^11203122001 is an apocalyptic number.

It is an amenable number.

11203122001 is a deficient number, since it is larger than the sum of its proper divisors (1).

11203122001 is an equidigital number, since it uses as much as digits as its factorization.

11203122001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11203122001 its reverse (10022130211), we get a palindrome (21225252212).

The spelling of 11203122001 in words is "eleven billion, two hundred three million, one hundred twenty-two thousand, one".