20103452300421 has 20 divisors (see below), whose sum is σ = 34321237790752. Its totient is φ = 11487687028488.

The previous prime is 20103452300417. The next prime is 20103452300423. The reversal of 20103452300421 is 12400325430102.

20103452300421 is a `hidden beast` number, since 2 + 0 + 1 + 0 + 3 + 4 + 5 + 230 + 0 + 421 = 666.

It is not a de Polignac number, because 20103452300421 - 2² = 20103452300417 is a prime.

It is a super-3 number, since 3×20103452300421³ (a number of 41 digits) contains 333 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 (20103452300423) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17727911515 + ... + 17727912648.

Almost surely, 2^{20103452300421} is an apocalyptic number.

20103452300421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20103452300421 is a deficient number, since it is larger than the sum of its proper divisors (14217785490331).

20103452300421 is an equidigital number, since it uses as much as digits as its factorization.

20103452300421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35455824182 (or 35455824173 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 20103452300421 its reverse (12400325430102), we get a palindrome (32503777730523).

The spelling of 20103452300421 in words is "twenty trillion, one hundred three billion, four hundred fifty-two million, three hundred thousand, four hundred twenty-one".