10120001111 has 32 divisors (see below), whose sum is σ = 11783439360. Its totient is φ = 8589542400.

The previous prime is 10120001071. The next prime is 10120001161. The reversal of 10120001111 is 11110002101.

It is a happy number.

It is not a de Polignac number, because 10120001111 - 2²⁶ = 10052892247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120001161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23480066 + ... + 23480496.

It is an arithmetic number, because the mean of its divisors is an integer number (368232480).

Almost surely, 2^10120001111 is an apocalyptic number.

10120001111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10120001111 is a deficient number, since it is larger than the sum of its proper divisors (1663438249).

10120001111 is a wasteful number, since it uses less digits than its factorization.

10120001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 10120001111 its reverse (11110002101), we get a palindrome (21230003212).

The spelling of 10120001111 in words is "ten billion, one hundred twenty million, one thousand, one hundred eleven".