243133020313 has 16 divisors (see below), whose sum is σ = 246400704000. Its totient is φ = 239889707200.

The previous prime is 243133020293. The next prime is 243133020343. The reversal of 243133020313 is 313020331342.

It is a cyclic number.

It is not a de Polignac number, because 243133020313 - 2²⁵ = 243099465881 is a prime.

It is a super-2 number, since 2×243133020313² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243133020343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33996288 + ... + 34003438.

It is an arithmetic number, because the mean of its divisors is an integer number (15400044000).

Almost surely, 2^243133020313 is an apocalyptic number.

It is an amenable number.

243133020313 is a deficient number, since it is larger than the sum of its proper divisors (3267683687).

243133020313 is a wasteful number, since it uses less digits than its factorization.

243133020313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8792.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 243133020313 its reverse (313020331342), we get a palindrome (556153351655).

The spelling of 243133020313 in words is "two hundred forty-three billion, one hundred thirty-three million, twenty thousand, three hundred thirteen".