13131000012443 has 2 divisors, whose sum is σ = 13131000012444. Its totient is φ = 13131000012442.

The previous prime is 13131000012419. The next prime is 13131000012469. The reversal of 13131000012443 is 34421000013131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13131000012443 - 2²⁶ = 13130932903579 is a prime.

It is a super-2 number, since 2×13131000012443² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13131000012343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6565500006221 + 6565500006222.

It is an arithmetic number, because the mean of its divisors is an integer number (6565500006222).

Almost surely, 2^{13131000012443} is an apocalyptic number.

13131000012443 is a deficient number, since it is larger than the sum of its proper divisors (1).

13131000012443 is an equidigital number, since it uses as much as digits as its factorization.

13131000012443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 13131000012443 its reverse (34421000013131), we get a palindrome (47552000025574).

The spelling of 13131000012443 in words is "thirteen trillion, one hundred thirty-one billion, twelve thousand, four hundred forty-three".