3135331231 has 2 divisors, whose sum is σ = 3135331232. Its totient is φ = 3135331230.

The previous prime is 3135331207. The next prime is 3135331327. The reversal of 3135331231 is 1321335313.

It is a weak prime.

It is an emirp because it is prime and its reverse (1321335313) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3135331231 is a prime.

It is a super-3 number, since 3×3135331231³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 3135331196 and 3135331205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3135361231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1567665615 + 1567665616.

It is an arithmetic number, because the mean of its divisors is an integer number (1567665616).

Almost surely, 2^3135331231 is an apocalyptic number.

3135331231 is a deficient number, since it is larger than the sum of its proper divisors (1).

3135331231 is an equidigital number, since it uses as much as digits as its factorization.

3135331231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2430, while the sum is 25.

The square root of 3135331231 is about 55994.0285298352. The cubic root of 3135331231 is about 1463.6182277081.

Adding to 3135331231 its reverse (1321335313), we get a palindrome (4456666544).

The spelling of 3135331231 in words is "three billion, one hundred thirty-five million, three hundred thirty-one thousand, two hundred thirty-one".