1512421323 has 16 divisors (see below), whose sum is σ = 2314801920. Its totient is φ = 860430816.

The previous prime is 1512421279. The next prime is 1512421343. The reversal of 1512421323 is 3231242151.

It is not a de Polignac number, because 1512421323 - 2⁶ = 1512421259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1512421293 and 1512421302.

It is not an unprimeable number, because it can be changed into a prime (1512421343) 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, 153868 + ... + 163401.

It is an arithmetic number, because the mean of its divisors is an integer number (144675120).

Almost surely, 2^1512421323 is an apocalyptic number.

1512421323 is a deficient number, since it is larger than the sum of its proper divisors (802380597).

1512421323 is a wasteful number, since it uses less digits than its factorization.

1512421323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317506.

The product of its digits is 1440, while the sum is 24.

The square root of 1512421323 is about 38889.8614422834. The cubic root of 1512421323 is about 1147.8653084802.

Adding to 1512421323 its reverse (3231242151), we get a palindrome (4743663474).

The spelling of 1512421323 in words is "one billion, five hundred twelve million, four hundred twenty-one thousand, three hundred twenty-three".