200231032121 has 4 divisors (see below), whose sum is σ = 207135550500. Its totient is φ = 193326513744.

The previous prime is 200231032097. The next prime is 200231032147. The reversal of 200231032121 is 121230132002.

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 56138668096 + 144092364025 = 236936^2 + 379595^2 .

It is a cyclic number.

It is not a de Polignac number, because 200231032121 - 2¹⁴ = 200231015737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200231032121.

It is not an unprimeable number, because it can be changed into a prime (200231038121) 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, 3452259146 + ... + 3452259203.

It is an arithmetic number, because the mean of its divisors is an integer number (51783887625).

Almost surely, 2^200231032121 is an apocalyptic number.

It is an amenable number.

200231032121 is a deficient number, since it is larger than the sum of its proper divisors (6904518379).

200231032121 is an equidigital number, since it uses as much as digits as its factorization.

200231032121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6904518378.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 200231032121 its reverse (121230132002), we get a palindrome (321461164123).

The spelling of 200231032121 in words is "two hundred billion, two hundred thirty-one million, thirty-two thousand, one hundred twenty-one".