1421403410020 has 96 divisors (see below), whose sum is σ = 3286591644672. Its totient is φ = 516342816000.

The previous prime is 1421403410017. The next prime is 1421403410041. The reversal of 1421403410020 is 200143041241.

It is a happy number.

It is a super-3 number, since 3×1421403410020³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1421403409973 and 1421403410000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26353480 + ... + 26407360.

It is an arithmetic number, because the mean of its divisors is an integer number (34235329632).

Almost surely, 2^{1421403410020} is an apocalyptic number.

1421403410020 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 1421403410020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1643295822336).

1421403410020 is an abundant number, since it is smaller than the sum of its proper divisors (1865188234652).

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

1421403410020 is a wasteful number, since it uses less digits than its factorization.

1421403410020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54914 (or 54890 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1421403410020 its reverse (200143041241), we get a palindrome (1621546451261).

The spelling of 1421403410020 in words is "one trillion, four hundred twenty-one billion, four hundred three million, four hundred ten thousand, twenty".