105206204102 has 4 divisors (see below), whose sum is σ = 157809306156. Its totient is φ = 52603102050.

The previous prime is 105206204053. The next prime is 105206204111. The reversal of 105206204102 is 201402602501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×105206204102² (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 as a sum of consecutive naturals, namely, 26301551024 + ... + 26301551027.

It is an arithmetic number, because the mean of its divisors is an integer number (39452326539).

Almost surely, 2^105206204102 is an apocalyptic number.

105206204102 is a deficient number, since it is larger than the sum of its proper divisors (52603102054).

105206204102 is an equidigital number, since it uses as much as digits as its factorization.

105206204102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52603102053.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 105206204102 its reverse (201402602501), we get a palindrome (306608806603).

The spelling of 105206204102 in words is "one hundred five billion, two hundred six million, two hundred four thousand, one hundred two".