105521131532 has 24 divisors (see below), whose sum is σ = 199335276000. Its totient is φ = 48726398336.

The previous prime is 105521131531. The next prime is 105521131553. The reversal of 105521131532 is 235131125501.

It is a super-2 number, since 2×105521131532² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 105521131495 and 105521131504.

It is not an unprimeable number, because it can be changed into a prime (105521131531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19772657 + ... + 19777992.

It is an arithmetic number, because the mean of its divisors is an integer number (8305636500).

Almost surely, 2^105521131532 is an apocalyptic number.

It is an amenable number.

105521131532 is a deficient number, since it is larger than the sum of its proper divisors (93814144468).

105521131532 is a wasteful number, since it uses less digits than its factorization.

105521131532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39550705 (or 39550703 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 105521131532 in words is "one hundred five billion, five hundred twenty-one million, one hundred thirty-one thousand, five hundred thirty-two".