1051105023 has 24 divisors (see below), whose sum is σ = 1599527280. Its totient is φ = 663292800.

The previous prime is 1051105021. The next prime is 1051105043. The reversal of 1051105023 is 3205011501.

It is not a de Polignac number, because 1051105023 - 2¹ = 1051105021 is a prime.

It is a super-2 number, since 2×1051105023² = 2209643538751661058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1051104987 and 1051105005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051105021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 306265 + ... + 309677.

It is an arithmetic number, because the mean of its divisors is an integer number (66646970).

Almost surely, 2^1051105023 is an apocalyptic number.

1051105023 is a deficient number, since it is larger than the sum of its proper divisors (548422257).

1051105023 is a wasteful number, since it uses less digits than its factorization.

1051105023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5239 (or 5236 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 1051105023 is about 32420.7498833694. The cubic root of 1051105023 is about 1016.7527846188.

Adding to 1051105023 its reverse (3205011501), we get a palindrome (4256116524).

The spelling of 1051105023 in words is "one billion, fifty-one million, one hundred five thousand, twenty-three".