131211212311123 has 8 divisors (see below), whose sum is σ = 153613126608480. Its totient is φ = 109723661862720.

The previous prime is 131211212311103. The next prime is 131211212311169. The reversal of 131211212311123 is 321113212112131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131211212311123 is a prime.

It is a super-2 number, since 2×131211212311123² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131211212311103) 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 7 ways as a sum of consecutive naturals, for example, 228590961928 + ... + 228590962501.

It is an arithmetic number, because the mean of its divisors is an integer number (19201640826060).

Almost surely, 2^{131211212311123} is an apocalyptic number.

131211212311123 is a deficient number, since it is larger than the sum of its proper divisors (22401914297357).

131211212311123 is an equidigital number, since it uses as much as digits as its factorization.

131211212311123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457181924477.

The product of its digits is 432, while the sum is 25.

Adding to 131211212311123 its reverse (321113212112131), we get a palindrome (452324424423254).

The spelling of 131211212311123 in words is "one hundred thirty-one trillion, two hundred eleven billion, two hundred twelve million, three hundred eleven thousand, one hundred twenty-three".