331220200133 has 8 divisors (see below), whose sum is σ = 331676905560. Its totient is φ = 330763599360.

The previous prime is 331220200057. The next prime is 331220200169. The reversal of 331220200133 is 331002022133.

It can be written as a sum of positive squares in 4 ways, for example, as 218516981764 + 112703218369 = 467458^2 + 335713^2 .

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 331220200133 - 2²² = 331216005829 is a prime.

It is a super-2 number, since 2×331220200133² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331220200193) 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, 7956413 + ... + 7997933.

It is an arithmetic number, because the mean of its divisors is an integer number (41459613195).

Almost surely, 2^331220200133 is an apocalyptic number.

It is an amenable number.

331220200133 is a deficient number, since it is larger than the sum of its proper divisors (456705427).

331220200133 is a wasteful number, since it uses less digits than its factorization.

331220200133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52327.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 331220200133 its reverse (331002022133), we get a palindrome (662222222266).

The spelling of 331220200133 in words is "three hundred thirty-one billion, two hundred twenty million, two hundred thousand, one hundred thirty-three".