13100031231061 has 2 divisors, whose sum is σ = 13100031231062. Its totient is φ = 13100031231060.

The previous prime is 13100031231029. The next prime is 13100031231163. The reversal of 13100031231061 is 16013213000131.

13100031231061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7576971916900 + 5523059314161 = 2752630^2 + 2350119^2 .

It is an emirp because it is prime and its reverse (16013213000131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13100031231061 - 2⁵ = 13100031231029 is a prime.

It is a super-2 number, since 2×13100031231061² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13100031231761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6550015615530 + 6550015615531.

It is an arithmetic number, because the mean of its divisors is an integer number (6550015615531).

Almost surely, 2^{13100031231061} is an apocalyptic number.

It is an amenable number.

13100031231061 is a deficient number, since it is larger than the sum of its proper divisors (1).

13100031231061 is an equidigital number, since it uses as much as digits as its factorization.

13100031231061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 13100031231061 its reverse (16013213000131), we get a palindrome (29113244231192).

The spelling of 13100031231061 in words is "thirteen trillion, one hundred billion, thirty-one million, two hundred thirty-one thousand, sixty-one".