1423320312 has 32 divisors (see below), whose sum is σ = 3559888080. Its totient is φ = 474228480.

The previous prime is 1423320299. The next prime is 1423320373. The reversal of 1423320312 is 2130233241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47362 + ... + 71342.

Almost surely, 2^1423320312 is an apocalyptic number.

1423320312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1423320312 is an abundant number, since it is smaller than the sum of its proper divisors (2136567768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1423320312 is a wasteful number, since it uses less digits than its factorization.

1423320312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26463 (or 26459 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1423320312 is about 37726.9176053385. The cubic root of 1423320312 is about 1124.8662391090.

Adding to 1423320312 its reverse (2130233241), we get a palindrome (3553553553).

The spelling of 1423320312 in words is "one billion, four hundred twenty-three million, three hundred twenty thousand, three hundred twelve".