13131121051 has 2 divisors, whose sum is σ = 13131121052. Its totient is φ = 13131121050.

The previous prime is 13131121039. The next prime is 13131121093. The reversal of 13131121051 is 15012113131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13131121051 - 2⁹ = 13131120539 is a prime.

It is not a weakly prime, because it can be changed into another prime (13131131051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6565560525 + 6565560526.

It is an arithmetic number, because the mean of its divisors is an integer number (6565560526).

Almost surely, 2^13131121051 is an apocalyptic number.

13131121051 is a deficient number, since it is larger than the sum of its proper divisors (1).

13131121051 is an equidigital number, since it uses as much as digits as its factorization.

13131121051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 19.

Adding to 13131121051 its reverse (15012113131), we get a palindrome (28143234182).

The spelling of 13131121051 in words is "thirteen billion, one hundred thirty-one million, one hundred twenty-one thousand, fifty-one".