20121341 has 4 divisors (see below), whose sum is σ = 20198112. Its totient is φ = 20044572.

The previous prime is 20121337. The next prime is 20121347. The reversal of 20121341 is 14312102.

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 not a de Polignac number, because 20121341 - 2² = 20121337 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 (20121347) 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, 37991 + ... + 38516.

It is an arithmetic number, because the mean of its divisors is an integer number (5049528).

Almost surely, 2^20121341 is an apocalyptic number.

It is an amenable number.

20121341 is a deficient number, since it is larger than the sum of its proper divisors (76771).

20121341 is an equidigital number, since it uses as much as digits as its factorization.

20121341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76770.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 20121341 is about 4485.6817764973. The cubic root of 20121341 is about 271.9896054635.

Adding to 20121341 its reverse (14312102), we get a palindrome (34433443).

The spelling of 20121341 in words is "twenty million, one hundred twenty-one thousand, three hundred forty-one".