1421323012 has 24 divisors (see below), whose sum is σ = 2639448504. Its totient is φ = 667379712.

The previous prime is 1421322979. The next prime is 1421323021. The reversal of 1421323012 is 2103231241.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 456847876 + 964475136 = 21374^2 + 31056^2 .

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, 8208 + ... + 53944.

It is an arithmetic number, because the mean of its divisors is an integer number (109977021).

Almost surely, 2^1421323012 is an apocalyptic number.

It is an amenable number.

1421323012 is a deficient number, since it is larger than the sum of its proper divisors (1218125492).

1421323012 is a wasteful number, since it uses less digits than its factorization.

1421323012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46215 (or 46213 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1421323012 is about 37700.4378223914. The cubic root of 1421323012 is about 1124.3398298283.

Adding to 1421323012 its reverse (2103231241), we get a palindrome (3524554253).

The spelling of 1421323012 in words is "one billion, four hundred twenty-one million, three hundred twenty-three thousand, twelve".