200121153241 has 8 divisors (see below), whose sum is σ = 201906215784. Its totient is φ = 198336337920.

The previous prime is 200121153233. The next prime is 200121153259. The reversal of 200121153241 is 142351121002.

It can be written as a sum of positive squares in 4 ways, for example, as 14019507216 + 186101646025 = 118404^2 + 431395^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200121153241 - 2³ = 200121153233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200121153641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1817925 + ... + 1924861.

It is an arithmetic number, because the mean of its divisors is an integer number (25238276973).

Almost surely, 2^200121153241 is an apocalyptic number.

It is an amenable number.

200121153241 is a deficient number, since it is larger than the sum of its proper divisors (1785062543).

200121153241 is a wasteful number, since it uses less digits than its factorization.

200121153241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123611.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 200121153241 its reverse (142351121002), we get a palindrome (342472274243).

The spelling of 200121153241 in words is "two hundred billion, one hundred twenty-one million, one hundred fifty-three thousand, two hundred forty-one".