20200102111 has 16 divisors (see below), whose sum is σ = 24541493760. Its totient is φ = 16240672800.

The previous prime is 20200102103. The next prime is 20200102121. The reversal of 20200102111 is 11120100202.

It is a cyclic number.

It is not a de Polignac number, because 20200102111 - 2³ = 20200102103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200102121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 738451 + ... + 765316.

It is an arithmetic number, because the mean of its divisors is an integer number (1533843360).

Almost surely, 2^20200102111 is an apocalyptic number.

20200102111 is a deficient number, since it is larger than the sum of its proper divisors (4341391649).

20200102111 is a wasteful number, since it uses less digits than its factorization.

20200102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503894.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20200102111 its reverse (11120100202), we get a palindrome (31320202313).

The spelling of 20200102111 in words is "twenty billion, two hundred million, one hundred two thousand, one hundred eleven".