11503222423237 has 2 divisors, whose sum is σ = 11503222423238. Its totient is φ = 11503222423236.

The previous prime is 11503222423229. The next prime is 11503222423243. The reversal of 11503222423237 is 73232422230511.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9226521675361 + 2276700747876 = 3037519^2 + 1508874^2 .

It is a cyclic number.

It is not a de Polignac number, because 11503222423237 - 2³ = 11503222423229 is a prime.

It is a super-2 number, since 2×11503222423237² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11503222423196 and 11503222423205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11503222423837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5751611211618 + 5751611211619.

It is an arithmetic number, because the mean of its divisors is an integer number (5751611211619).

Almost surely, 2^{11503222423237} is an apocalyptic number.

It is an amenable number.

11503222423237 is a deficient number, since it is larger than the sum of its proper divisors (1).

11503222423237 is an equidigital number, since it uses as much as digits as its factorization.

11503222423237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 37.

Adding to 11503222423237 its reverse (73232422230511), we get a palindrome (84735644653748).

The spelling of 11503222423237 in words is "eleven trillion, five hundred three billion, two hundred twenty-two million, four hundred twenty-three thousand, two hundred thirty-seven".