3131133303311 has 4 divisors (see below), whose sum is σ = 3371989711272. Its totient is φ = 2890276895352.

The previous prime is 3131133303251. The next prime is 3131133303313. The reversal of 3131133303311 is 1133033311313.

It is a happy number.

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-3131133303311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131133303313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120428203961 + ... + 120428203986.

It is an arithmetic number, because the mean of its divisors is an integer number (842997427818).

Almost surely, 2^{3131133303311} is an apocalyptic number.

3131133303311 is a deficient number, since it is larger than the sum of its proper divisors (240856407961).

3131133303311 is a wasteful number, since it uses less digits than its factorization.

3131133303311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240856407960.

The product of its (nonzero) digits is 2187, while the sum is 26.

Adding to 3131133303311 its reverse (1133033311313), we get a palindrome (4264166614624).

The spelling of 3131133303311 in words is "three trillion, one hundred thirty-one billion, one hundred thirty-three million, three hundred three thousand, three hundred eleven".