1421023013040 has 80 divisors (see below), whose sum is σ = 4405285909728. Its totient is φ = 378929614848.

The previous prime is 1421023013029. The next prime is 1421023013063. The reversal of 1421023013040 is 403103201241.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 1421023012998 and 1421023013016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17790472 + ... + 17870168.

Almost surely, 2^{1421023013040} is an apocalyptic number.

1421023013040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421023013040 is an abundant number, since it is smaller than the sum of its proper divisors (2984262896688).

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

1421023013040 is a wasteful number, since it uses less digits than its factorization.

1421023013040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154006 (or 154000 counting only the distinct ones).

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

Adding to 1421023013040 its reverse (403103201241), we get a palindrome (1824126214281).

The spelling of 1421023013040 in words is "one trillion, four hundred twenty-one billion, twenty-three million, thirteen thousand, forty".