105451123502420 has 48 divisors (see below), whose sum is σ = 221975423018496. Its totient is φ = 42079878432000.

The previous prime is 105451123502419. The next prime is 105451123502441. The reversal of 105451123502420 is 24205321154501.

It is a super-2 number, since 2×105451123502420² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136509065 + ... + 137279375.

It is an arithmetic number, because the mean of its divisors is an integer number (4624487979552).

Almost surely, 2^{105451123502420} is an apocalyptic number.

105451123502420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105451123502420 is an abundant number, since it is smaller than the sum of its proper divisors (116524299516076).

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

105451123502420 is a wasteful number, since it uses less digits than its factorization.

105451123502420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786632 (or 786630 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 105451123502420 its reverse (24205321154501), we get a palindrome (129656444656921).

The spelling of 105451123502420 in words is "one hundred five trillion, four hundred fifty-one billion, one hundred twenty-three million, five hundred two thousand, four hundred twenty".