105130212145 has 16 divisors (see below), whose sum is σ = 148075296768. Its totient is φ = 70140928320.

The previous prime is 105130212127. The next prime is 105130212149. The reversal of 105130212145 is 541212031501.

It is not a de Polignac number, because 105130212145 - 2⁷ = 105130212017 is a prime.

It is a super-2 number, since 2×105130212145² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105130212149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40589521 + ... + 40592110.

It is an arithmetic number, because the mean of its divisors is an integer number (9254706048).

Almost surely, 2^105130212145 is an apocalyptic number.

It is an amenable number.

105130212145 is a deficient number, since it is larger than the sum of its proper divisors (42945084623).

105130212145 is an equidigital number, since it uses as much as digits as its factorization.

105130212145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81181680.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 105130212145 its reverse (541212031501), we get a palindrome (646342243646).

The spelling of 105130212145 in words is "one hundred five billion, one hundred thirty million, two hundred twelve thousand, one hundred forty-five".