101001020102 has 4 divisors (see below), whose sum is σ = 151501530156. Its totient is φ = 50500510050.

The previous prime is 101001020093. The next prime is 101001020191. The reversal of 101001020102 is 201020100101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 201020100101 = 179 ⋅1123017319.

It is a self number, because there is not a number n which added to its sum of digits gives 101001020102.

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, 25250255024 + ... + 25250255027.

It is an arithmetic number, because the mean of its divisors is an integer number (37875382539).

Almost surely, 2^101001020102 is an apocalyptic number.

101001020102 is a deficient number, since it is larger than the sum of its proper divisors (50500510054).

101001020102 is an equidigital number, since it uses as much as digits as its factorization.

101001020102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50500510053.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 101001020102 its reverse (201020100101), we get a palindrome (302021120203).

The spelling of 101001020102 in words is "one hundred one billion, one million, twenty thousand, one hundred two".