102050111 has 4 divisors (see below), whose sum is σ = 103102272. Its totient is φ = 100997952.

The previous prime is 102050093. The next prime is 102050119. The reversal of 102050111 is 111050201.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-102050111 is a prime.

It is a super-2 number, since 2×102050111² = 20828450310224642, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102050092 and 102050101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102050119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525935 + ... + 526128.

It is an arithmetic number, because the mean of its divisors is an integer number (25775568).

Almost surely, 2^102050111 is an apocalyptic number.

102050111 is a deficient number, since it is larger than the sum of its proper divisors (1052161).

102050111 is an equidigital number, since it uses as much as digits as its factorization.

102050111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052160.

The product of its (nonzero) digits is 10, while the sum is 11.

The square root of 102050111 is about 10101.9854979108. The cubic root of 102050111 is about 467.3093750359.

The spelling of 102050111 in words is "one hundred two million, fifty thousand, one hundred eleven".