105421531032 has 48 divisors (see below), whose sum is σ = 295362054000. Its totient is φ = 33928767936.

The previous prime is 105421531031. The next prime is 105421531057. The reversal of 105421531032 is 230135124501.

105421531032 is a `hidden beast` number, since 1 + 0 + 542 + 15 + 3 + 103 + 2 = 666.

It is a super-2 number, since 2×105421531032² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105421530987 and 105421531005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105421531031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25242532 + ... + 25246707.

It is an arithmetic number, because the mean of its divisors is an integer number (6153376125).

Almost surely, 2^105421531032 is an apocalyptic number.

105421531032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

105421531032 is an abundant number, since it is smaller than the sum of its proper divisors (189940522968).

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

105421531032 is a wasteful number, since it uses less digits than its factorization.

105421531032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50489280 (or 50489273 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 105421531032 its reverse (230135124501), we get a palindrome (335556655533).

The spelling of 105421531032 in words is "one hundred five billion, four hundred twenty-one million, five hundred thirty-one thousand, thirty-two".