200121231130331 has 4 divisors (see below), whose sum is σ = 228709978434672. Its totient is φ = 171532483825992.

The previous prime is 200121231130273. The next prime is 200121231130351. The reversal of 200121231130331 is 133031132121002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200121231130331 is a prime.

It is a super-2 number, since 2×200121231130331² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200121231130297 and 200121231130306.

It is not an unprimeable number, because it can be changed into a prime (200121231130351) 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, 14294373652160 + ... + 14294373652173.

It is an arithmetic number, because the mean of its divisors is an integer number (57177494608668).

Almost surely, 2^{200121231130331} is an apocalyptic number.

200121231130331 is a deficient number, since it is larger than the sum of its proper divisors (28588747304341).

200121231130331 is an equidigital number, since it uses as much as digits as its factorization.

200121231130331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28588747304340.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 200121231130331 its reverse (133031132121002), we get a palindrome (333152363251333).

The spelling of 200121231130331 in words is "two hundred trillion, one hundred twenty-one billion, two hundred thirty-one million, one hundred thirty thousand, three hundred thirty-one".