131121200212005 has 8 divisors (see below), whose sum is σ = 209793920339232. Its totient is φ = 69931306779728.

The previous prime is 131121200211979. The next prime is 131121200212099. The reversal of 131121200212005 is 500212002121131.

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 131121200212005 - 2¹⁹ = 131121199687717 is a prime.

It is a super-2 number, since 2×131121200212005² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4370706673719 + ... + 4370706673748.

It is an arithmetic number, because the mean of its divisors is an integer number (26224240042404).

Almost surely, 2^{131121200212005} is an apocalyptic number.

131121200212005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131121200212005 is a deficient number, since it is larger than the sum of its proper divisors (78672720127227).

131121200212005 is an equidigital number, since it uses as much as digits as its factorization.

131121200212005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8741413347475.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 131121200212005 its reverse (500212002121131), we get a palindrome (631333202333136).

The spelling of 131121200212005 in words is "one hundred thirty-one trillion, one hundred twenty-one billion, two hundred million, two hundred twelve thousand, five".