105161231200 has 36 divisors (see below), whose sum is σ = 256724857620. Its totient is φ = 42064492160.

The previous prime is 105161231117. The next prime is 105161231213. The reversal of 105161231200 is 2132161501.

It is a happy number.

It is a super-2 number, since 2×105161231200² (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 5 ways as a sum of consecutive naturals, for example, 65724970 + ... + 65726569.

It is an arithmetic number, because the mean of its divisors is an integer number (7131246045).

Almost surely, 2^105161231200 is an apocalyptic number.

105161231200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105161231200 is an abundant number, since it is smaller than the sum of its proper divisors (151563626420).

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

105161231200 is a wasteful number, since it uses less digits than its factorization.

105161231200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131451559 (or 131451546 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 105161231200 its reverse (2132161501), we get a palindrome (107293392701).

The spelling of 105161231200 in words is "one hundred five billion, one hundred sixty-one million, two hundred thirty-one thousand, two hundred".