105523601420 has 24 divisors (see below), whose sum is σ = 221607613584. Its totient is φ = 42207907136.

The previous prime is 105523601419. The next prime is 105523601429. The reversal of 105523601420 is 24106325501.

It is a super-2 number, since 2×105523601420² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105523601429) 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, 587159 + ... + 745521.

It is an arithmetic number, because the mean of its divisors is an integer number (9233650566).

Almost surely, 2^105523601420 is an apocalyptic number.

105523601420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105523601420 is an abundant number, since it is smaller than the sum of its proper divisors (116084012164).

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

105523601420 is a wasteful number, since it uses less digits than its factorization.

105523601420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191689 (or 191687 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 105523601420 its reverse (24106325501), we get a palindrome (129629926921).

The spelling of 105523601420 in words is "one hundred five billion, five hundred twenty-three million, six hundred one thousand, four hundred twenty".