13122100031 has 4 divisors (see below), whose sum is σ = 13427265192. Its totient is φ = 12816934872.

The previous prime is 13122099937. The next prime is 13122100039. The reversal of 13122100031 is 13000122131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13000122131 = 75989 ⋅171079.

It is a cyclic number.

It is not a de Polignac number, because 13122100031 - 2²² = 13117905727 is a prime.

It is a super-2 number, since 2×13122100031² (a number of 21 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 = 13122099979 and 13122100015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122100039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152582516 + ... + 152582601.

It is an arithmetic number, because the mean of its divisors is an integer number (3356816298).

Almost surely, 2^13122100031 is an apocalyptic number.

13122100031 is a deficient number, since it is larger than the sum of its proper divisors (305165161).

13122100031 is an equidigital number, since it uses as much as digits as its factorization.

13122100031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305165160.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 13122100031 its reverse (13000122131), we get a palindrome (26122222162).

The spelling of 13122100031 in words is "thirteen billion, one hundred twenty-two million, one hundred thousand, thirty-one".