1423431012 has 48 divisors (see below), whose sum is σ = 3637992960. Its totient is φ = 431165952.

The previous prime is 1423431011. The next prime is 1423431019. The reversal of 1423431012 is 2101343241.

It is a self number, because there is not a number n which added to its sum of digits gives 1423431012.

It is not an unprimeable number, because it can be changed into a prime (1423431011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114388 + ... + 126219.

It is an arithmetic number, because the mean of its divisors is an integer number (75791520).

Almost surely, 2^1423431012 is an apocalyptic number.

1423431012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1423431012 is an abundant number, since it is smaller than the sum of its proper divisors (2214561948).

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

1423431012 is a wasteful number, since it uses less digits than its factorization.

1423431012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240660 (or 240658 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1423431012 is about 37728.3846990565. The cubic root of 1423431012 is about 1124.8954008429.

Adding to 1423431012 its reverse (2101343241), we get a palindrome (3524774253).

The spelling of 1423431012 in words is "one billion, four hundred twenty-three million, four hundred thirty-one thousand, twelve".