10102011111 has 6 divisors (see below), whose sum is σ = 14591793840. Its totient is φ = 6734674068.

The previous prime is 10102011097. The next prime is 10102011169. The reversal of 10102011111 is 11111020101.

It is not a de Polignac number, because 10102011111 - 2⁶ = 10102011047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1122445679 = 10102011111 / (1 + 0 + 1 + 0 + 2 + 0 + 1 + 1 + 1 + 1 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 10102011093 and 10102011102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10102011511) 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, 561222831 + ... + 561222848.

It is an arithmetic number, because the mean of its divisors is an integer number (2431965640).

Almost surely, 2^10102011111 is an apocalyptic number.

10102011111 is a deficient number, since it is larger than the sum of its proper divisors (4489782729).

10102011111 is a wasteful number, since it uses less digits than its factorization.

10102011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122445685 (or 1122445682 counting only the distinct ones).

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

Adding to 10102011111 its reverse (11111020101), we get a palindrome (21213031212).

The spelling of 10102011111 in words is "ten billion, one hundred two million, eleven thousand, one hundred eleven".