1421023445000 has 80 divisors (see below), whose sum is σ = 3335316029100. Its totient is φ = 567409280000.

The previous prime is 1421023444999. The next prime is 1421023445011. The reversal of 1421023445000 is 5443201241.

It can be written as a sum of positive squares in 10 ways, for example, as 772602324484 + 648421120516 = 878978^2 + 805246^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2595260 + ... + 3094740.

Almost surely, 2^{1421023445000} is an apocalyptic number.

1421023445000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421023445000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1667658014550).

1421023445000 is an abundant number, since it is smaller than the sum of its proper divisors (1914292584100).

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

1421023445000 is an equidigital number, since it uses as much as digits as its factorization.

1421023445000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500076 (or 500057 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 1421023445000 its reverse (5443201241), we get a palindrome (1426466646241).

The spelling of 1421023445000 in words is "one trillion, four hundred twenty-one billion, twenty-three million, four hundred forty-five thousand".