1130040123 has 4 divisors (see below), whose sum is σ = 1506720168. Its totient is φ = 753360080.

The previous prime is 1130040113. The next prime is 1130040137. The reversal of 1130040123 is 3210400311.

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 1130040123 - 2¹⁷ = 1129909051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1130040113) 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, 188340018 + ... + 188340023.

It is an arithmetic number, because the mean of its divisors is an integer number (376680042).

Almost surely, 2^1130040123 is an apocalyptic number.

1130040123 is a deficient number, since it is larger than the sum of its proper divisors (376680045).

1130040123 is an equidigital number, since it uses as much as digits as its factorization.

1130040123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376680044.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1130040123 is about 33616.0694162777. The cubic root of 1130040123 is about 1041.5927649872.

Adding to 1130040123 its reverse (3210400311), we get a palindrome (4340440434).

The spelling of 1130040123 in words is "one billion, one hundred thirty million, forty thousand, one hundred twenty-three".