20343234412 has 48 divisors (see below), whose sum is σ = 38125836000. Its totient is φ = 9469716480.

The previous prime is 20343234407. The next prime is 20343234413. The reversal of 20343234412 is 21443234302.

It is not an unprimeable number, because it can be changed into a prime (20343234413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1552464 + ... + 1565512.

It is an arithmetic number, because the mean of its divisors is an integer number (794288250).

Almost surely, 2^20343234412 is an apocalyptic number.

It is an amenable number.

20343234412 is a deficient number, since it is larger than the sum of its proper divisors (17782601588).

20343234412 is a wasteful number, since it uses less digits than its factorization.

20343234412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13426 (or 13424 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 20343234412 its reverse (21443234302), we get a palindrome (41786468714).

The spelling of 20343234412 in words is "twenty billion, three hundred forty-three million, two hundred thirty-four thousand, four hundred twelve".