101020102102 has 4 divisors (see below), whose sum is σ = 151530153156. Its totient is φ = 50510051050.

The previous prime is 101020102037. The next prime is 101020102121. The reversal of 101020102102 is 201201020101.

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

It is a super-2 number, since 2×101020102102² (a number of 23 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 (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25255025524 + ... + 25255025527.

It is an arithmetic number, because the mean of its divisors is an integer number (37882538289).

Almost surely, 2^101020102102 is an apocalyptic number.

101020102102 is a deficient number, since it is larger than the sum of its proper divisors (50510051054).

101020102102 is an equidigital number, since it uses as much as digits as its factorization.

101020102102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50510051053.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 101020102102 its reverse (201201020101), we get a palindrome (302221122203).

The spelling of 101020102102 in words is "one hundred one billion, twenty million, one hundred two thousand, one hundred two".