131221230432133 has 8 divisors (see below), whose sum is σ = 134770026487808. Its totient is φ = 127672554182544.

The previous prime is 131221230432109. The next prime is 131221230432137. The reversal of 131221230432133 is 331234032122131.

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 131221230432133 - 2⁴⁵ = 96036858343301 is a prime.

It is a super-2 number, since 2×131221230432133² (a number of 29 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 = 131221230432095 and 131221230432104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131221230432137) 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, 27729141 + ... + 32114602.

It is an arithmetic number, because the mean of its divisors is an integer number (16846253310976).

Almost surely, 2^{131221230432133} is an apocalyptic number.

It is an amenable number.

131221230432133 is a deficient number, since it is larger than the sum of its proper divisors (3548796055675).

131221230432133 is an equidigital number, since it uses as much as digits as its factorization.

131221230432133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59903043.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 131221230432133 its reverse (331234032122131), we get a palindrome (462455262554264).

The spelling of 131221230432133 in words is "one hundred thirty-one trillion, two hundred twenty-one billion, two hundred thirty million, four hundred thirty-two thousand, one hundred thirty-three".