131211120113 has 8 divisors (see below), whose sum is σ = 138915336000. Its totient is φ = 123586741008.

The previous prime is 131211120097. The next prime is 131211120121. The reversal of 131211120113 is 311021112131.

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 131211120113 - 2⁴ = 131211120097 is a prime.

It is a super-2 number, since 2×131211120113² (a number of 23 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 = 131211120091 and 131211120100.

It is not an unprimeable number, because it can be changed into a prime (131211120133) 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, 19955813 + ... + 19962386.

It is an arithmetic number, because the mean of its divisors is an integer number (17364417000).

Almost surely, 2^131211120113 is an apocalyptic number.

It is an amenable number.

131211120113 is a deficient number, since it is larger than the sum of its proper divisors (7704215887).

131211120113 is a wasteful number, since it uses less digits than its factorization.

131211120113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39918391.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 131211120113 its reverse (311021112131), we get a palindrome (442232232244).

The spelling of 131211120113 in words is "one hundred thirty-one billion, two hundred eleven million, one hundred twenty thousand, one hundred thirteen".