20102111024 has 20 divisors (see below), whose sum is σ = 39385459080. Its totient is φ = 9938121600.

The previous prime is 20102110961. The next prime is 20102111039. The reversal of 20102111024 is 42011120102.

It is a happy number.

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 in 3 ways as a sum of consecutive naturals, for example, 7056902 + ... + 7059749.

It is an arithmetic number, because the mean of its divisors is an integer number (1969272954).

Almost surely, 2^20102111024 is an apocalyptic number.

It is an amenable number.

20102111024 is a deficient number, since it is larger than the sum of its proper divisors (19283348056).

20102111024 is a wasteful number, since it uses less digits than its factorization.

20102111024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14116748 (or 14116742 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20102111024 its reverse (42011120102), we get a palindrome (62113231126).

The spelling of 20102111024 in words is "twenty billion, one hundred two million, one hundred eleven thousand, twenty-four".