105120265331 has 4 divisors (see below), whose sum is σ = 108511241664. Its totient is φ = 101729289000.

The previous prime is 105120265303. The next prime is 105120265339. The reversal of 105120265331 is 133562021501.

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 105120265331 - 2³⁰ = 104046523507 is a prime.

It is a super-2 number, since 2×105120265331² (a number of 23 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 = 105120265294 and 105120265303.

It is not an unprimeable number, because it can be changed into a prime (105120265339) 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, 1695488120 + ... + 1695488181.

It is an arithmetic number, because the mean of its divisors is an integer number (27127810416).

Almost surely, 2^105120265331 is an apocalyptic number.

105120265331 is a deficient number, since it is larger than the sum of its proper divisors (3390976333).

105120265331 is an equidigital number, since it uses as much as digits as its factorization.

105120265331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3390976332.

The product of its (nonzero) digits is 5400, while the sum is 29.

Adding to 105120265331 its reverse (133562021501), we get a palindrome (238682286832).

The spelling of 105120265331 in words is "one hundred five billion, one hundred twenty million, two hundred sixty-five thousand, three hundred thirty-one".