105351243020 has 24 divisors (see below), whose sum is σ = 222163300800. Its totient is φ = 41964175232.

The previous prime is 105351242989. The next prime is 105351243043. The reversal of 105351243020 is 20342153501.

It is a happy number.

It is a super-2 number, since 2×105351243020² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11015225 + ... + 11024784.

It is an arithmetic number, because the mean of its divisors is an integer number (9256804200).

Almost surely, 2^105351243020 is an apocalyptic number.

105351243020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105351243020 is an abundant number, since it is smaller than the sum of its proper divisors (116812057780).

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

105351243020 is a wasteful number, since it uses less digits than its factorization.

105351243020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22040257 (or 22040255 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 105351243020 its reverse (20342153501), we get a palindrome (125693396521).

The spelling of 105351243020 in words is "one hundred five billion, three hundred fifty-one million, two hundred forty-three thousand, twenty".