106523102021 has 16 divisors (see below), whose sum is σ = 123769161600. Its totient is φ = 89784953280.

The previous prime is 106523102017. The next prime is 106523102029. The reversal of 106523102021 is 120201325601.

It is not a de Polignac number, because 106523102021 - 2² = 106523102017 is a prime.

It is a super-2 number, since 2×106523102021² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106523102029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1688555 + ... + 1750503.

It is an arithmetic number, because the mean of its divisors is an integer number (7735572600).

Almost surely, 2^106523102021 is an apocalyptic number.

It is an amenable number.

106523102021 is a deficient number, since it is larger than the sum of its proper divisors (17246059579).

106523102021 is an equidigital number, since it uses as much as digits as its factorization.

106523102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66044.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 106523102021 its reverse (120201325601), we get a palindrome (226724427622).

The spelling of 106523102021 in words is "one hundred six billion, five hundred twenty-three million, one hundred two thousand, twenty-one".