101920102 has 4 divisors (see below), whose sum is σ = 152880156. Its totient is φ = 50960050.

The previous prime is 101920097. The next prime is 101920109. The reversal of 101920102 is 201029101.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101920109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25480024 + ... + 25480027.

It is an arithmetic number, because the mean of its divisors is an integer number (38220039).

Almost surely, 2^101920102 is an apocalyptic number.

101920102 is a deficient number, since it is larger than the sum of its proper divisors (50960054).

101920102 is an equidigital number, since it uses as much as digits as its factorization.

101920102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50960053.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 101920102 is about 10095.5486230318. The cubic root of 101920102 is about 467.1108443270.

Adding to 101920102 its reverse (201029101), we get a palindrome (302949203).

The spelling of 101920102 in words is "one hundred one million, nine hundred twenty thousand, one hundred two".