20142101 has 4 divisors (see below), whose sum is σ = 23019552. Its totient is φ = 17264652.

The previous prime is 20142091. The next prime is 20142131. The reversal of 20142101 is 10124102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20142101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20142131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1438715 + ... + 1438728.

It is an arithmetic number, because the mean of its divisors is an integer number (5754888).

Almost surely, 2^20142101 is an apocalyptic number.

It is an amenable number.

20142101 is a deficient number, since it is larger than the sum of its proper divisors (2877451).

20142101 is an equidigital number, since it uses as much as digits as its factorization.

20142101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2877450.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 20142101 is about 4487.9952094449. The cubic root of 20142101 is about 272.0831141982.

Adding to 20142101 its reverse (10124102), we get a palindrome (30266203).

The spelling of 20142101 in words is "twenty million, one hundred forty-two thousand, one hundred one".