1421240423103 has 12 divisors (see below), whose sum is σ = 2128936272008. Its totient is φ = 947493615240.

The previous prime is 1421240423081. The next prime is 1421240423117. The reversal of 1421240423103 is 3013240421241.

1421240423103 is a `hidden beast` number, since 1 + 4 + 21 + 2 + 404 + 231 + 0 + 3 = 666.

It is not a de Polignac number, because 1421240423103 - 2³⁰ = 1420166681279 is a prime.

It is a super-2 number, since 2×1421240423103² (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 Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421240423803) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2924362768 + ... + 2924363253.

Almost surely, 2^{1421240423103} is an apocalyptic number.

1421240423103 is a deficient number, since it is larger than the sum of its proper divisors (707695848905).

1421240423103 is an frugal number, since it uses more digits than its factorization.

1421240423103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5848726036 (or 5848726024 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 1421240423103 its reverse (3013240421241), we get a palindrome (4434480844344).

The spelling of 1421240423103 in words is "one trillion, four hundred twenty-one billion, two hundred forty million, four hundred twenty-three thousand, one hundred three".