11503222424261 has 2 divisors, whose sum is σ = 11503222424262. Its totient is φ = 11503222424260.

The previous prime is 11503222424201. The next prime is 11503222424297. The reversal of 11503222424261 is 16242422230511.

11503222424261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11498270628100 + 4951796161 = 3390910^2 + 70369^2 .

It is a cyclic number.

It is not a de Polignac number, because 11503222424261 - 2¹⁰ = 11503222423237 is a prime.

It is a super-2 number, since 2×11503222424261² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11503222424201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5751611212130 + 5751611212131.

It is an arithmetic number, because the mean of its divisors is an integer number (5751611212131).

Almost surely, 2^{11503222424261} is an apocalyptic number.

It is an amenable number.

11503222424261 is a deficient number, since it is larger than the sum of its proper divisors (1).

11503222424261 is an equidigital number, since it uses as much as digits as its factorization.

11503222424261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 35.

Adding to 11503222424261 its reverse (16242422230511), we get a palindrome (27745644654772).

The spelling of 11503222424261 in words is "eleven trillion, five hundred three billion, two hundred twenty-two million, four hundred twenty-four thousand, two hundred sixty-one".