105305012530031 has 4 divisors (see below), whose sum is σ = 105305100162192. Its totient is φ = 105304924897872.

The previous prime is 105305012530027. The next prime is 105305012530043. The reversal of 105305012530031 is 130035210503501.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 105305012530031 - 2² = 105305012530027 is a prime.

It is a super-2 number, since 2×105305012530031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105305012529976 and 105305012530003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105305012530231) 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, 41988155 + ... + 44425388.

It is an arithmetic number, because the mean of its divisors is an integer number (26326275040548).

Almost surely, 2^{105305012530031} is an apocalyptic number.

105305012530031 is a deficient number, since it is larger than the sum of its proper divisors (87632161).

105305012530031 is an equidigital number, since it uses as much as digits as its factorization.

105305012530031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87632160.

The product of its (nonzero) digits is 6750, while the sum is 29.

The spelling of 105305012530031 in words is "one hundred five trillion, three hundred five billion, twelve million, five hundred thirty thousand, thirty-one".