13021112101 has 2 divisors, whose sum is σ = 13021112102. Its totient is φ = 13021112100.

The previous prime is 13021112099. The next prime is 13021112131. The reversal of 13021112101 is 10121112031.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9743664100 + 3277448001 = 98710^2 + 57249^2 .

It is a cyclic number.

It is not a de Polignac number, because 13021112101 - 2¹ = 13021112099 is a prime.

Together with 13021112099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13021112131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6510556050 + 6510556051.

It is an arithmetic number, because the mean of its divisors is an integer number (6510556051).

Almost surely, 2^13021112101 is an apocalyptic number.

It is an amenable number.

13021112101 is a deficient number, since it is larger than the sum of its proper divisors (1).

13021112101 is an equidigital number, since it uses as much as digits as its factorization.

13021112101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 13021112101 its reverse (10121112031), we get a palindrome (23142224132).

The spelling of 13021112101 in words is "thirteen billion, twenty-one million, one hundred twelve thousand, one hundred one".