133531225400213 has 4 divisors (see below), whose sum is σ = 133604958823008. Its totient is φ = 133457491977420.

The previous prime is 133531225400203. The next prime is 133531225400341. The reversal of 133531225400213 is 312004522135331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 133531225400213 - 2¹² = 133531225396117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133531225400203) 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, 36866708681 + ... + 36866712302.

It is an arithmetic number, because the mean of its divisors is an integer number (33401239705752).

Almost surely, 2^{133531225400213} is an apocalyptic number.

It is an amenable number.

133531225400213 is a deficient number, since it is larger than the sum of its proper divisors (73733422795).

133531225400213 is an equidigital number, since it uses as much as digits as its factorization.

133531225400213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73733422794.

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 133531225400213 its reverse (312004522135331), we get a palindrome (445535747535544).

The spelling of 133531225400213 in words is "one hundred thirty-three trillion, five hundred thirty-one billion, two hundred twenty-five million, four hundred thousand, two hundred thirteen".