11121013534 has 4 divisors (see below), whose sum is σ = 16681520304. Its totient is φ = 5560506766.

The previous prime is 11121013529. The next prime is 11121013543. The reversal of 11121013534 is 43531012111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×11121013534² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2780253382 + ... + 2780253385.

It is an arithmetic number, because the mean of its divisors is an integer number (4170380076).

Almost surely, 2^11121013534 is an apocalyptic number.

11121013534 is a deficient number, since it is larger than the sum of its proper divisors (5560506770).

11121013534 is an equidigital number, since it uses as much as digits as its factorization.

11121013534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5560506769.

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 11121013534 its reverse (43531012111), we get a palindrome (54652025645).

The spelling of 11121013534 in words is "eleven billion, one hundred twenty-one million, thirteen thousand, five hundred thirty-four".