1421302423244 has 24 divisors (see below), whose sum is σ = 2716692561408. Its totient is φ = 645261549840.

The previous prime is 1421302423237. The next prime is 1421302423313. The reversal of 1421302423244 is 4423242031241.

It is a happy number.

It is a super-2 number, since 2×1421302423244² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1421302423244.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19588532 + ... + 19660955.

It is an arithmetic number, because the mean of its divisors is an integer number (113195523392).

Almost surely, 2^{1421302423244} is an apocalyptic number.

It is an amenable number.

1421302423244 is a deficient number, since it is larger than the sum of its proper divisors (1295390138164).

1421302423244 is a wasteful number, since it uses less digits than its factorization.

1421302423244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39250325 (or 39250323 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 1421302423244 its reverse (4423242031241), we get a palindrome (5844544454485).

The spelling of 1421302423244 in words is "one trillion, four hundred twenty-one billion, three hundred two million, four hundred twenty-three thousand, two hundred forty-four".