13121201331131 has 8 divisors (see below), whose sum is σ = 13707194242560. Its totient is φ = 12536500577832.

The previous prime is 13121201331097. The next prime is 13121201331143. The reversal of 13121201331131 is 13113310212131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13121201331131 - 2²⁶ = 13121134222267 is a prime.

It is a super-2 number, since 2×13121201331131² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13121201331097 and 13121201331106.

It is not an unprimeable number, because it can be changed into a prime (13121201331151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323018771 + ... + 323059388.

It is an arithmetic number, because the mean of its divisors is an integer number (1713399280320).

Almost surely, 2^{13121201331131} is an apocalyptic number.

13121201331131 is a deficient number, since it is larger than the sum of its proper divisors (585992911429).

13121201331131 is an equidigital number, since it uses as much as digits as its factorization.

13121201331131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646079065.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 13121201331131 its reverse (13113310212131), we get a palindrome (26234511543262).

The spelling of 13121201331131 in words is "thirteen trillion, one hundred twenty-one billion, two hundred one million, three hundred thirty-one thousand, one hundred thirty-one".