10451111123 has 4 divisors (see below), whose sum is σ = 10453478448. Its totient is φ = 10448743800.

The previous prime is 10451111119. The next prime is 10451111129. The reversal of 10451111123 is 32111115401.

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 10451111123 - 2² = 10451111119 is a prime.

It is a super-2 number, since 2×10451111123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10451111095 and 10451111104.

It is not an unprimeable number, because it can be changed into a prime (10451111129) 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, 1177028 + ... + 1185873.

It is an arithmetic number, because the mean of its divisors is an integer number (2613369612).

Almost surely, 2^10451111123 is an apocalyptic number.

10451111123 is a deficient number, since it is larger than the sum of its proper divisors (2367325).

10451111123 is an equidigital number, since it uses as much as digits as its factorization.

10451111123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2367324.

The product of its (nonzero) digits is 120, while the sum is 20.

Adding to 10451111123 its reverse (32111115401), we get a palindrome (42562226524).

The spelling of 10451111123 in words is "ten billion, four hundred fifty-one million, one hundred eleven thousand, one hundred twenty-three".