105421125102 has 8 divisors (see below), whose sum is σ = 210842250216. Its totient is φ = 35140375032.

The previous prime is 105421125079. The next prime is 105421125127. The reversal of 105421125102 is 201521124501.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

105421125102 is an admirable number.

It is a super-2 number, since 2×105421125102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8785093753 + ... + 8785093764.

It is an arithmetic number, because the mean of its divisors is an integer number (26355281277).

Almost surely, 2^105421125102 is an apocalyptic number.

105421125102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

105421125102 is a wasteful number, since it uses less digits than its factorization.

105421125102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17570187522.

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 105421125102 its reverse (201521124501), we get a palindrome (306942249603).

The spelling of 105421125102 in words is "one hundred five billion, four hundred twenty-one million, one hundred twenty-five thousand, one hundred two".