10120002111 has 32 divisors (see below), whose sum is σ = 15694295040. Its totient is φ = 6437037600.

The previous prime is 10120002083. The next prime is 10120002157. The reversal of 10120002111 is 11120002101.

It is a happy number.

It is not a de Polignac number, because 10120002111 - 2¹⁴ = 10119985727 is a prime.

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 = 10120002093 and 10120002102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120002311) 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, 25720 + ... + 144573.

It is an arithmetic number, because the mean of its divisors is an integer number (490446720).

Almost surely, 2^10120002111 is an apocalyptic number.

10120002111 is a deficient number, since it is larger than the sum of its proper divisors (5574292929).

10120002111 is a wasteful number, since it uses less digits than its factorization.

10120002111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170404 (or 170398 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10120002111 its reverse (11120002101), we get a palindrome (21240004212).

The spelling of 10120002111 in words is "ten billion, one hundred twenty million, two thousand, one hundred eleven".