105420302500 has 30 divisors (see below), whose sum is σ = 230533122974. Its totient is φ = 42168120000.

The previous prime is 105420302479. The next prime is 105420302629. The reversal of 105420302500 is 5203024501.

It can be written as a sum of positive squares in 5 ways, for example, as 11431458724 + 93988843776 = 106918^2 + 306576^2 .

It is a super-2 number, since 2×105420302500² (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 9 ways as a sum of consecutive naturals, for example, 21081561 + ... + 21086560.

Almost surely, 2^105420302500 is an apocalyptic number.

105420302500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105420302500 is an abundant number, since it is smaller than the sum of its proper divisors (125112820474).

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

105420302500 is an equidigital number, since it uses as much as digits as its factorization.

105420302500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42168145 (or 42168128 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The spelling of 105420302500 in words is "one hundred five billion, four hundred twenty million, three hundred two thousand, five hundred".