11115123253 has 32 divisors (see below), whose sum is σ = 13028520960. Its totient is φ = 9390712320.

The previous prime is 11115123251. The next prime is 11115123259. The reversal of 11115123253 is 35232151111.

It is a cyclic number.

It is not a de Polignac number, because 11115123253 - 2¹ = 11115123251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11115123251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7755825 + ... + 7757257.

It is an arithmetic number, because the mean of its divisors is an integer number (407141280).

Almost surely, 2^11115123253 is an apocalyptic number.

11115123253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11115123253 is a deficient number, since it is larger than the sum of its proper divisors (1913397707).

11115123253 is a wasteful number, since it uses less digits than its factorization.

11115123253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2509.

The product of its digits is 900, while the sum is 25.

Adding to 11115123253 its reverse (35232151111), we get a palindrome (46347274364).

The spelling of 11115123253 in words is "eleven billion, one hundred fifteen million, one hundred twenty-three thousand, two hundred fifty-three".