20130233411421 has 80 divisors (see below), whose sum is σ = 36593036832000. Its totient is φ = 11002860148896.

The previous prime is 20130233411417. The next prime is 20130233411423. The reversal of 20130233411421 is 12411433203102.

20130233411421 is a `hidden beast` number, since 2 + 0 + 1 + 3 + 0 + 233 + 4 + 1 + 1 + 421 = 666.

It is not a de Polignac number, because 20130233411421 - 2² = 20130233411417 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130233411423) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 15112126 + ... + 16390143.

It is an arithmetic number, because the mean of its divisors is an integer number (457412960400).

Almost surely, 2^{20130233411421} is an apocalyptic number.

20130233411421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20130233411421 is a deficient number, since it is larger than the sum of its proper divisors (16462803420579).

20130233411421 is an equidigital number, since it uses as much as digits as its factorization.

20130233411421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31502325 (or 31502302 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 20130233411421 its reverse (12411433203102), we get a palindrome (32541666614523).

The spelling of 20130233411421 in words is "twenty trillion, one hundred thirty billion, two hundred thirty-three million, four hundred eleven thousand, four hundred twenty-one".