20131034321 has 8 divisors (see below), whose sum is σ = 20155322880. Its totient is φ = 20106763488.

The previous prime is 20131034281. The next prime is 20131034323. The reversal of 20131034321 is 12343013102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20131034321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20131034293 and 20131034302.

It is not an unprimeable number, because it can be changed into a prime (20131034323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4650260 + ... + 4654586.

It is an arithmetic number, because the mean of its divisors is an integer number (2519415360).

Almost surely, 2^20131034321 is an apocalyptic number.

It is an amenable number.

20131034321 is a deficient number, since it is larger than the sum of its proper divisors (24288559).

20131034321 is a wasteful number, since it uses less digits than its factorization.

20131034321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8863.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20131034321 its reverse (12343013102), we get a palindrome (32474047423).

The spelling of 20131034321 in words is "twenty billion, one hundred thirty-one million, thirty-four thousand, three hundred twenty-one".