1312032123 has 24 divisors (see below), whose sum is σ = 1989795600. Its totient is φ = 831910464.

The previous prime is 1312032121. The next prime is 1312032131. The reversal of 1312032123 is 3212302131.

It is not a de Polignac number, because 1312032123 - 2¹ = 1312032121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1312032096 and 1312032105.

It is not an unprimeable number, because it can be changed into a prime (1312032121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20028 + ... + 55001.

It is an arithmetic number, because the mean of its divisors is an integer number (82908150).

Almost surely, 2^1312032123 is an apocalyptic number.

1312032123 is a deficient number, since it is larger than the sum of its proper divisors (677763477).

1312032123 is a wasteful number, since it uses less digits than its factorization.

1312032123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75131 (or 75128 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1312032123 is about 36221.9839738245. The cubic root of 1312032123 is about 1094.7496694286.

Adding to 1312032123 its reverse (3212302131), we get a palindrome (4524334254).

The spelling of 1312032123 in words is "one billion, three hundred twelve million, thirty-two thousand, one hundred twenty-three".