11312311123 has 8 divisors (see below), whose sum is σ = 11387705328. Its totient is φ = 11237090304.

The previous prime is 11312311117. The next prime is 11312311141. The reversal of 11312311123 is 32111321311.

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 11312311123 - 2¹⁷ = 11312180051 is a prime.

It is a super-2 number, since 2×11312311123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11312311123.

It is not an unprimeable number, because it can be changed into a prime (11312311163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88911 + ... + 174727.

It is an arithmetic number, because the mean of its divisors is an integer number (1423463166).

Almost surely, 2^11312311123 is an apocalyptic number.

11312311123 is a deficient number, since it is larger than the sum of its proper divisors (75394205).

11312311123 is an equidigital number, since it uses as much as digits as its factorization.

11312311123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86693.

The product of its digits is 108, while the sum is 19.

Adding to 11312311123 its reverse (32111321311), we get a palindrome (43423632434).

The spelling of 11312311123 in words is "eleven billion, three hundred twelve million, three hundred eleven thousand, one hundred twenty-three".