131212013110133 has 4 divisors (see below), whose sum is σ = 131469797026380. Its totient is φ = 130954229193888.

The previous prime is 131212013110117. The next prime is 131212013110141. The reversal of 131212013110133 is 331011310212131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 119687604073489 + 11524409036644 = 10940183^2 + 3394762^2 .

It is a cyclic number.

It is not a de Polignac number, because 131212013110133 - 2⁴ = 131212013110117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131212013110099 and 131212013110108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131212013110153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128891957360 + ... + 128891958377.

It is an arithmetic number, because the mean of its divisors is an integer number (32867449256595).

Almost surely, 2^{131212013110133} is an apocalyptic number.

It is an amenable number.

131212013110133 is a deficient number, since it is larger than the sum of its proper divisors (257783916247).

131212013110133 is an equidigital number, since it uses as much as digits as its factorization.

131212013110133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257783916246.

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

Adding to 131212013110133 its reverse (331011310212131), we get a palindrome (462223323322264).

The spelling of 131212013110133 in words is "one hundred thirty-one trillion, two hundred twelve billion, thirteen million, one hundred ten thousand, one hundred thirty-three".