10534020111 has 18 divisors (see below), whose sum is σ = 15800237232. Its totient is φ = 7022675700.

The previous prime is 10534020061. The next prime is 10534020113. The reversal of 10534020111 is 11102043501.

10534020111 is a `hidden beast` number, since 1 + 0 + 534 + 0 + 20 + 111 = 666.

It is not a de Polignac number, because 10534020111 - 2⁶ = 10534020047 is a prime.

It is a super-2 number, since 2×10534020111² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10534020113) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 796215 + ... + 809336.

Almost surely, 2^10534020111 is an apocalyptic number.

10534020111 is a deficient number, since it is larger than the sum of its proper divisors (5266217121).

10534020111 is an frugal number, since it uses more digits than its factorization.

10534020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605575 (or 1605554 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 10534020111 its reverse (11102043501), we get a palindrome (21636063612).

The spelling of 10534020111 in words is "ten billion, five hundred thirty-four million, twenty thousand, one hundred eleven".