1130405123 has 16 divisors (see below), whose sum is σ = 1240375680. Its totient is φ = 1025396736.

The previous prime is 1130405119. The next prime is 1130405149. The reversal of 1130405123 is 3215040311.

It is a cyclic number.

It is not a de Polignac number, because 1130405123 - 2² = 1130405119 is a prime.

It is a super-3 number, since 3×1130405123³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1130405095 and 1130405104.

It is not an unprimeable number, because it can be changed into a prime (1130404123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330086 + ... + 333492.

It is an arithmetic number, because the mean of its divisors is an integer number (77523480).

Almost surely, 2^1130405123 is an apocalyptic number.

1130405123 is a deficient number, since it is larger than the sum of its proper divisors (109970557).

1130405123 is a wasteful number, since it uses less digits than its factorization.

1130405123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4126.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1130405123 is about 33621.4979291524. The cubic root of 1130405123 is about 1041.7048968269.

Adding to 1130405123 its reverse (3215040311), we get a palindrome (4345445434).

The spelling of 1130405123 in words is "one billion, one hundred thirty million, four hundred five thousand, one hundred twenty-three".