20000143234 has 16 divisors (see below), whose sum is σ = 30292347672. Its totient is φ = 9902850048.

The previous prime is 20000143199. The next prime is 20000143259. The reversal of 20000143234 is 43234100002.

It can be written as a sum of positive squares in 4 ways, for example, as 7868222209 + 12131921025 = 88703^2 + 110145^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222202 + ... + 298954.

Almost surely, 2^20000143234 is an apocalyptic number.

20000143234 is a deficient number, since it is larger than the sum of its proper divisors (10292204438).

20000143234 is a wasteful number, since it uses less digits than its factorization.

20000143234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78021.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20000143234 its reverse (43234100002), we get a palindrome (63234243236).

The spelling of 20000143234 in words is "twenty billion, one hundred forty-three thousand, two hundred thirty-four".