20014121 has 4 divisors (see below), whose sum is σ = 20049744. Its totient is φ = 19978500.

The previous prime is 20014079. The next prime is 20014133. The reversal of 20014121 is 12141002.

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-20014121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20014171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16955 + ... + 18096.

It is an arithmetic number, because the mean of its divisors is an integer number (5012436).

Almost surely, 2^20014121 is an apocalyptic number.

It is an amenable number.

20014121 is a deficient number, since it is larger than the sum of its proper divisors (35623).

20014121 is an equidigital number, since it uses as much as digits as its factorization.

20014121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35622.

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

The square root of 20014121 is about 4473.7144522198. The cubic root of 20014121 is about 271.5056304489.

Adding to 20014121 its reverse (12141002), we get a palindrome (32155123).

The spelling of 20014121 in words is "twenty million, fourteen thousand, one hundred twenty-one".