200121132041 has 4 divisors (see below), whose sum is σ = 200125009812. Its totient is φ = 200117254272.

The previous prime is 200121131957. The next prime is 200121132077. The reversal of 200121132041 is 140231121002.

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

It can be written as a sum of positive squares in 2 ways, for example, as 169726696441 + 30394435600 = 411979^2 + 174340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200121132041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200121132641) 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, 1860416 + ... + 1965041.

It is an arithmetic number, because the mean of its divisors is an integer number (50031252453).

Almost surely, 2^200121132041 is an apocalyptic number.

It is an amenable number.

200121132041 is a deficient number, since it is larger than the sum of its proper divisors (3877771).

200121132041 is an equidigital number, since it uses as much as digits as its factorization.

200121132041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3877770.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 200121132041 its reverse (140231121002), we get a palindrome (340352253043).

The spelling of 200121132041 in words is "two hundred billion, one hundred twenty-one million, one hundred thirty-two thousand, forty-one".