11156123135 has 8 divisors (see below), whose sum is σ = 13392494640. Its totient is φ = 8921467264.

The previous prime is 11156123101. The next prime is 11156123141. The reversal of 11156123135 is 53132165111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11156123135 - 2¹⁴ = 11156106751 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11156123098 and 11156123107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 414557 + ... + 440646.

It is an arithmetic number, because the mean of its divisors is an integer number (1674061830).

Almost surely, 2^11156123135 is an apocalyptic number.

11156123135 is a deficient number, since it is larger than the sum of its proper divisors (2236371505).

11156123135 is an equidigital number, since it uses as much as digits as its factorization.

11156123135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857817.

The product of its digits is 2700, while the sum is 29.

Adding to 11156123135 its reverse (53132165111), we get a palindrome (64288288246).

The spelling of 11156123135 in words is "eleven billion, one hundred fifty-six million, one hundred twenty-three thousand, one hundred thirty-five".