10120209111 has 6 divisors (see below), whose sum is σ = 14618079840. Its totient is φ = 6746806068.

The previous prime is 10120209109. The next prime is 10120209119. The reversal of 10120209111 is 11190202101.

It is a happy number.

It is not a de Polignac number, because 10120209111 - 2¹ = 10120209109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120209119) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 562233831 + ... + 562233848.

It is an arithmetic number, because the mean of its divisors is an integer number (2436346640).

Almost surely, 2^10120209111 is an apocalyptic number.

10120209111 is a deficient number, since it is larger than the sum of its proper divisors (4497870729).

10120209111 is a wasteful number, since it uses less digits than its factorization.

10120209111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124467685 (or 1124467682 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 10120209111 in words is "ten billion, one hundred twenty million, two hundred nine thousand, one hundred eleven".