13021323131122 has 4 divisors (see below), whose sum is σ = 19531984696686. Its totient is φ = 6510661565560.

The previous prime is 13021323131093. The next prime is 13021323131189. The reversal of 13021323131122 is 22113132312031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7542114256681 + 5479208874441 = 2746291^2 + 2340771^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3255330782779 + ... + 3255330782782.

Almost surely, 2^{13021323131122} is an apocalyptic number.

13021323131122 is a deficient number, since it is larger than the sum of its proper divisors (6510661565564).

13021323131122 is an equidigital number, since it uses as much as digits as its factorization.

13021323131122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6510661565563.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 13021323131122 its reverse (22113132312031), we get a palindrome (35134455443153).

The spelling of 13021323131122 in words is "thirteen trillion, twenty-one billion, three hundred twenty-three million, one hundred thirty-one thousand, one hundred twenty-two".