1320134123 has 32 divisors (see below), whose sum is σ = 1704748032. Its totient is φ = 992534400.

The previous prime is 1320134071. The next prime is 1320134131. The reversal of 1320134123 is 3214310231.

It is not a de Polignac number, because 1320134123 - 2¹⁶ = 1320068587 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1320134095 and 1320134104.

It is not an unprimeable number, because it can be changed into a prime (1320134183) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 246290 + ... + 251592.

It is an arithmetic number, because the mean of its divisors is an integer number (53273376).

Almost surely, 2^1320134123 is an apocalyptic number.

1320134123 is a deficient number, since it is larger than the sum of its proper divisors (384613909).

1320134123 is a wasteful number, since it uses less digits than its factorization.

1320134123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5435.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1320134123 is about 36333.6500093233. The cubic root of 1320134123 is about 1096.9984626984.

Adding to 1320134123 its reverse (3214310231), we get a palindrome (4534444354).

The spelling of 1320134123 in words is "one billion, three hundred twenty million, one hundred thirty-four thousand, one hundred twenty-three".