11123423525 has 6 divisors (see below), whose sum is σ = 13793045202. Its totient is φ = 8898738800.

The previous prime is 11123423489. The next prime is 11123423557. The reversal of 11123423525 is 52532432111.

It can be written as a sum of positive squares in 3 ways, for example, as 26275876 + 11097147649 = 5126^2 + 105343^2 .

It is not a de Polignac number, because 11123423525 - 2¹² = 11123419429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 222468446 + ... + 222468495.

It is an arithmetic number, because the mean of its divisors is an integer number (2298840867).

Almost surely, 2^11123423525 is an apocalyptic number.

It is an amenable number.

11123423525 is a deficient number, since it is larger than the sum of its proper divisors (2669621677).

11123423525 is an equidigital number, since it uses as much as digits as its factorization.

11123423525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444936951 (or 444936946 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

Adding to 11123423525 its reverse (52532432111), we get a palindrome (63655855636).

The spelling of 11123423525 in words is "eleven billion, one hundred twenty-three million, four hundred twenty-three thousand, five hundred twenty-five".