105245203023 has 24 divisors (see below), whose sum is σ = 155632585680. Its totient is φ = 68498115840.

The previous prime is 105245203001. The next prime is 105245203027. The reversal of 105245203023 is 320302542501.

It is a happy number.

105245203023 is a `hidden beast` number, since 105 + 2 + 4 + 520 + 30 + 2 + 3 = 666.

It is not a de Polignac number, because 105245203023 - 2⁹ = 105245202511 is a prime.

It is a super-2 number, since 2×105245203023² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105245203027) 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, 734983 + ... + 866423.

It is an arithmetic number, because the mean of its divisors is an integer number (6484691070).

Almost surely, 2^105245203023 is an apocalyptic number.

105245203023 is a deficient number, since it is larger than the sum of its proper divisors (50387382657).

105245203023 is a wasteful number, since it uses less digits than its factorization.

105245203023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133559 (or 133556 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 105245203023 its reverse (320302542501), we get a palindrome (425547745524).

The spelling of 105245203023 in words is "one hundred five billion, two hundred forty-five million, two hundred three thousand, twenty-three".