233130031313 has 4 divisors (see below), whose sum is σ = 241168997940. Its totient is φ = 225091064688.

The previous prime is 233130031307. The next prime is 233130031319. The reversal of 233130031313 is 313130031332.

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

It is an interprime number because it is at equal distance from previous prime (233130031307) and next prime (233130031319).

It can be written as a sum of positive squares in 2 ways, for example, as 194156559424 + 38973471889 = 440632^2 + 197417^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233130031313 is a prime.

It is a super-2 number, since 2×233130031313² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233130031319) 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, 4019483270 + ... + 4019483327.

It is an arithmetic number, because the mean of its divisors is an integer number (60292249485).

Almost surely, 2^233130031313 is an apocalyptic number.

It is an amenable number.

233130031313 is a deficient number, since it is larger than the sum of its proper divisors (8038966627).

233130031313 is an equidigital number, since it uses as much as digits as its factorization.

233130031313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8038966626.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 233130031313 its reverse (313130031332), we get a palindrome (546260062645).

The spelling of 233130031313 in words is "two hundred thirty-three billion, one hundred thirty million, thirty-one thousand, three hundred thirteen".