20013043034 has 4 divisors (see below), whose sum is σ = 30019564554. Its totient is φ = 10006521516.

The previous prime is 20013043019. The next prime is 20013043049. The reversal of 20013043034 is 43034031002.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (20013043019) and next prime (20013043049).

It can be written as a sum of positive squares in only one way, i.e., 13294781809 + 6718261225 = 115303^2 + 81965^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20013042997 and 20013043015.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5003260757 + ... + 5003260760.

Almost surely, 2^20013043034 is an apocalyptic number.

20013043034 is a deficient number, since it is larger than the sum of its proper divisors (10006521520).

20013043034 is a wasteful number, since it uses less digits than its factorization.

20013043034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10006521519.

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

Adding to 20013043034 its reverse (43034031002), we get a palindrome (63047074036).

The spelling of 20013043034 in words is "twenty billion, thirteen million, forty-three thousand, thirty-four".