131243331311 has 2 divisors, whose sum is σ = 131243331312. Its totient is φ = 131243331310.

The previous prime is 131243331299. The next prime is 131243331343. The reversal of 131243331311 is 113133342131.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (113133342131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131243331311 - 2²⁶ = 131176222447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131243331361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65621665655 + 65621665656.

It is an arithmetic number, because the mean of its divisors is an integer number (65621665656).

Almost surely, 2^131243331311 is an apocalyptic number.

131243331311 is a deficient number, since it is larger than the sum of its proper divisors (1).

131243331311 is an equidigital number, since it uses as much as digits as its factorization.

131243331311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 26.

Adding to 131243331311 its reverse (113133342131), we get a palindrome (244376673442).

The spelling of 131243331311 in words is "one hundred thirty-one billion, two hundred forty-three million, three hundred thirty-one thousand, three hundred eleven".