1421440320033 has 16 divisors (see below), whose sum is σ = 2105873496000. Its totient is φ = 947610686880.

The previous prime is 1421440320017. The next prime is 1421440320077. The reversal of 1421440320033 is 3300230441241.

1421440320033 is a `hidden beast` number, since 1 + 4 + 21 + 4 + 403 + 200 + 33 = 666.

It is not a de Polignac number, because 1421440320033 - 2⁴ = 1421440320017 is a prime.

It is a super-2 number, since 2×1421440320033² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1421440319979 and 1421440320006.

It is not an unprimeable number, because it can be changed into a prime (1421440320233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1280518 + ... + 2117216.

It is an arithmetic number, because the mean of its divisors is an integer number (131617093500).

Almost surely, 2^{1421440320033} is an apocalyptic number.

It is an amenable number.

1421440320033 is a deficient number, since it is larger than the sum of its proper divisors (684433175967).

1421440320033 is an equidigital number, since it uses as much as digits as its factorization.

1421440320033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899629 (or 899623 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 1421440320033 its reverse (3300230441241), we get a palindrome (4721670761274).

The spelling of 1421440320033 in words is "one trillion, four hundred twenty-one billion, four hundred forty million, three hundred twenty thousand, thirty-three".