11001021123 has 8 divisors (see below), whose sum is σ = 14668579008. Its totient is φ = 7333738664.

The previous prime is 11001021107. The next prime is 11001021169. The reversal of 11001021123 is 32112010011.

11001021123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11001021123 - 2⁴ = 11001021107 is a prime.

It is a super-2 number, since 2×11001021123² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11001021099 and 11001021108.

It is not an unprimeable number, because it can be changed into a prime (11001021023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57436 + ... + 159062.

It is an arithmetic number, because the mean of its divisors is an integer number (1833572376).

Almost surely, 2^11001021123 is an apocalyptic number.

11001021123 is a deficient number, since it is larger than the sum of its proper divisors (3667557885).

11001021123 is a wasteful number, since it uses less digits than its factorization.

11001021123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137713.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 11001021123 its reverse (32112010011), we get a palindrome (43113031134).

The spelling of 11001021123 in words is "eleven billion, one million, twenty-one thousand, one hundred twenty-three".