102102010106 has 4 divisors (see below), whose sum is σ = 153153015162. Its totient is φ = 51051005052.

The previous prime is 102102010061. The next prime is 102102010123. The reversal of 102102010106 is 601010201201.

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

It can be written as a sum of positive squares in only one way, i.e., 87384680881 + 14717329225 = 295609^2 + 121315^2 .

It is a super-2 number, since 2×102102010106² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25525502525 + ... + 25525502528.

Almost surely, 2^102102010106 is an apocalyptic number.

102102010106 is a deficient number, since it is larger than the sum of its proper divisors (51051005056).

102102010106 is an equidigital number, since it uses as much as digits as its factorization.

102102010106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51051005055.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 102102010106 its reverse (601010201201), we get a palindrome (703112211307).

The spelling of 102102010106 in words is "one hundred two billion, one hundred two million, ten thousand, one hundred six".