20012051044 has 12 divisors (see below), whose sum is σ = 35023089024. Its totient is φ = 10005454184.

The previous prime is 20012051039. The next prime is 20012051051. The reversal of 20012051044 is 44015021002.

It is a super-2 number, since 2×20012051044² (a number of 21 digits) contains 22 as substring.

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, 58492 + ... + 208435.

It is an arithmetic number, because the mean of its divisors is an integer number (2918590752).

Almost surely, 2^20012051044 is an apocalyptic number.

It is an amenable number.

20012051044 is a deficient number, since it is larger than the sum of its proper divisors (15011037980).

20012051044 is a wasteful number, since it uses less digits than its factorization.

20012051044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285674 (or 285672 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 20012051044 its reverse (44015021002), we get a palindrome (64027072046).

The spelling of 20012051044 in words is "twenty billion, twelve million, fifty-one thousand, forty-four".