13122322021031 has 4 divisors (see below), whose sum is σ = 13401520361952. Its totient is φ = 12843123680112.

The previous prime is 13122322021013. The next prime is 13122322021057. The reversal of 13122322021031 is 13012022322131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13122322021031 is a prime.

It is a super-2 number, since 2×13122322021031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13122322020988 and 13122322021006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122322026031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139599170390 + ... + 139599170483.

It is an arithmetic number, because the mean of its divisors is an integer number (3350380090488).

Almost surely, 2^{13122322021031} is an apocalyptic number.

13122322021031 is a deficient number, since it is larger than the sum of its proper divisors (279198340921).

13122322021031 is an equidigital number, since it uses as much as digits as its factorization.

13122322021031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279198340920.

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

Adding to 13122322021031 its reverse (13012022322131), we get a palindrome (26134344343162).

The spelling of 13122322021031 in words is "thirteen trillion, one hundred twenty-two billion, three hundred twenty-two million, twenty-one thousand, thirty-one".