10311201123 has 4 divisors (see below), whose sum is σ = 13748268168. Its totient is φ = 6874134080.

The previous prime is 10311201023. The next prime is 10311201127. The reversal of 10311201123 is 32110211301.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10311201123 - 2¹⁴ = 10311184739 is a prime.

It is a super-2 number, since 2×10311201123² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10311201127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1718533518 + ... + 1718533523.

It is an arithmetic number, because the mean of its divisors is an integer number (3437067042).

Almost surely, 2^10311201123 is an apocalyptic number.

10311201123 is a deficient number, since it is larger than the sum of its proper divisors (3437067045).

10311201123 is an equidigital number, since it uses as much as digits as its factorization.

10311201123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3437067044.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 10311201123 its reverse (32110211301), we get a palindrome (42421412424).

The spelling of 10311201123 in words is "ten billion, three hundred eleven million, two hundred one thousand, one hundred twenty-three".