105323136212 has 24 divisors (see below), whose sum is σ = 210836277120. Its totient is φ = 45097771680.

The previous prime is 105323136199. The next prime is 105323136227. The reversal of 105323136212 is 212631323501.

It is a happy number.

It is a super-2 number, since 2×105323136212² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1664864 + ... + 1726967.

It is an arithmetic number, because the mean of its divisors is an integer number (8784844880).

Almost surely, 2^105323136212 is an apocalyptic number.

It is an amenable number.

105323136212 is an abundant number, since it is smaller than the sum of its proper divisors (105513140908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105323136212 is a wasteful number, since it uses less digits than its factorization.

105323136212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3392951 (or 3392949 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 105323136212 its reverse (212631323501), we get a palindrome (317954459713).

The spelling of 105323136212 in words is "one hundred five billion, three hundred twenty-three million, one hundred thirty-six thousand, two hundred twelve".