20000102031111 has 16 divisors (see below), whose sum is σ = 26693232622560. Its totient is φ = 13320192138240.

The previous prime is 20000102031079. The next prime is 20000102031127. The reversal of 20000102031111 is 11113020100002.

It is not a de Polignac number, because 20000102031111 - 2⁵ = 20000102031079 is a prime.

It is a super-2 number, since 2×20000102031111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000102031011) 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, 13263595 + ... + 14694323.

It is an arithmetic number, because the mean of its divisors is an integer number (1668327038910).

Almost surely, 2^{20000102031111} is an apocalyptic number.

20000102031111 is a deficient number, since it is larger than the sum of its proper divisors (6693130591449).

20000102031111 is a wasteful number, since it uses less digits than its factorization.

20000102031111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435346.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 20000102031111 its reverse (11113020100002), we get a palindrome (31113122131113).

The spelling of 20000102031111 in words is "twenty trillion, one hundred two million, thirty-one thousand, one hundred eleven".