20130320234 has 8 divisors (see below), whose sum is σ = 30196088388. Its totient is φ = 10064957440.

The previous prime is 20130320219. The next prime is 20130320263. The reversal of 20130320234 is 43202303102.

It can be written as a sum of positive squares in 2 ways, for example, as 15226819609 + 4903500625 = 123397^2 + 70025^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116264 + ... + 231900.

Almost surely, 2^20130320234 is an apocalyptic number.

20130320234 is a deficient number, since it is larger than the sum of its proper divisors (10065768154).

20130320234 is a wasteful number, since it uses less digits than its factorization.

20130320234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202680.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20130320234 its reverse (43202303102), we get a palindrome (63332623336).

The spelling of 20130320234 in words is "twenty billion, one hundred thirty million, three hundred twenty thousand, two hundred thirty-four".