10200000111111 has 8 divisors (see below), whose sum is σ = 15111111275760. Its totient is φ = 6800000074056.

The previous prime is 10200000111079. The next prime is 10200000111131. The reversal of 10200000111111 is 11111100000201.

It is not a de Polignac number, because 10200000111111 - 2⁵ = 10200000111079 is a prime.

It is a super-3 number, since 3×10200000111111³ (a number of 40 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10200000111093 and 10200000111102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10200000111131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188888890920 + ... + 188888890973.

It is an arithmetic number, because the mean of its divisors is an integer number (1888888909470).

Almost surely, 2^{10200000111111} is an apocalyptic number.

10200000111111 is a deficient number, since it is larger than the sum of its proper divisors (4911111164649).

10200000111111 is an equidigital number, since it uses as much as digits as its factorization.

10200000111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377777781902 (or 377777781896 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 10200000111111 its reverse (11111100000201), we get a palindrome (21311100111312).

The spelling of 10200000111111 in words is "ten trillion, two hundred billion, one hundred eleven thousand, one hundred eleven".