13131523124243 has 2 divisors, whose sum is σ = 13131523124244. Its totient is φ = 13131523124242.

The previous prime is 13131523124201. The next prime is 13131523124263. The reversal of 13131523124243 is 34242132513131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13131523124243 - 2¹² = 13131523120147 is a prime.

It is a super-2 number, since 2×13131523124243² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13131523124263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6565761562121 + 6565761562122.

It is an arithmetic number, because the mean of its divisors is an integer number (6565761562122).

Almost surely, 2^{13131523124243} is an apocalyptic number.

13131523124243 is a deficient number, since it is larger than the sum of its proper divisors (1).

13131523124243 is an equidigital number, since it uses as much as digits as its factorization.

13131523124243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 35.

Adding to 13131523124243 its reverse (34242132513131), we get a palindrome (47373655637374).

The spelling of 13131523124243 in words is "thirteen trillion, one hundred thirty-one billion, five hundred twenty-three million, one hundred twenty-four thousand, two hundred forty-three".