1512312323 has 4 divisors (see below), whose sum is σ = 1513476048. Its totient is φ = 1511148600.

The previous prime is 1512312313. The next prime is 1512312337. The reversal of 1512312323 is 3232132151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3232132151 = 37 ⋅87354923.

It is a cyclic number.

It is not a de Polignac number, because 1512312323 - 2⁶ = 1512312259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1512312313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579911 + ... + 582512.

It is an arithmetic number, because the mean of its divisors is an integer number (378369012).

Almost surely, 2^1512312323 is an apocalyptic number.

1512312323 is a deficient number, since it is larger than the sum of its proper divisors (1163725).

1512312323 is a wasteful number, since it uses less digits than its factorization.

1512312323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163724.

The product of its digits is 1080, while the sum is 23.

The square root of 1512312323 is about 38888.4600235083. The cubic root of 1512312323 is about 1147.8377323186.

Adding to 1512312323 its reverse (3232132151), we get a palindrome (4744444474).

The spelling of 1512312323 in words is "one billion, five hundred twelve million, three hundred twelve thousand, three hundred twenty-three".