20131034421 has 4 divisors (see below), whose sum is σ = 26841379232. Its totient is φ = 13420689612.

The previous prime is 20131034387. The next prime is 20131034461. The reversal of 20131034421 is 12443013102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20131034421 - 2¹⁰ = 20131033397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131034461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3355172401 + ... + 3355172406.

It is an arithmetic number, because the mean of its divisors is an integer number (6710344808).

Almost surely, 2^20131034421 is an apocalyptic number.

It is an amenable number.

20131034421 is a deficient number, since it is larger than the sum of its proper divisors (6710344811).

20131034421 is an equidigital number, since it uses as much as digits as its factorization.

20131034421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6710344810.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20131034421 its reverse (12443013102), we get a palindrome (32574047523).

The spelling of 20131034421 in words is "twenty billion, one hundred thirty-one million, thirty-four thousand, four hundred twenty-one".