105115321025 has 24 divisors (see below), whose sum is σ = 153130240704. Its totient is φ = 70566926400.

The previous prime is 105115321021. The next prime is 105115321037. The reversal of 105115321025 is 520123511501.

It is not a de Polignac number, because 105115321025 - 2² = 105115321021 is a prime.

It is a super-2 number, since 2×105115321025² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 105115320985 and 105115321003.

It is not an unprimeable number, because it can be changed into a prime (105115321021) 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, 14697869 + ... + 14705018.

It is an arithmetic number, because the mean of its divisors is an integer number (6380426696).

Almost surely, 2^105115321025 is an apocalyptic number.

It is an amenable number.

105115321025 is a deficient number, since it is larger than the sum of its proper divisors (48014919679).

105115321025 is a wasteful number, since it uses less digits than its factorization.

105115321025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29402921 (or 29402916 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 26.

Adding to 105115321025 its reverse (520123511501), we get a palindrome (625238832526).

The spelling of 105115321025 in words is "one hundred five billion, one hundred fifteen million, three hundred twenty-one thousand, twenty-five".