20434343012 has 12 divisors (see below), whose sum is σ = 35770310016. Its totient is φ = 10214254440.

The previous prime is 20434342979. The next prime is 20434343029. The reversal of 20434343012 is 21034343402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 713468 + ... + 741555.

It is an arithmetic number, because the mean of its divisors is an integer number (2980859168).

Almost surely, 2^20434343012 is an apocalyptic number.

It is an amenable number.

20434343012 is a deficient number, since it is larger than the sum of its proper divisors (15335967004).

20434343012 is a wasteful number, since it uses less digits than its factorization.

20434343012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458538 (or 1458536 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 20434343012 its reverse (21034343402), we get a palindrome (41468686414).

The spelling of 20434343012 in words is "twenty billion, four hundred thirty-four million, three hundred forty-three thousand, twelve".