133531212200405 has 16 divisors (see below), whose sum is σ = 161824701235968. Its totient is φ = 105766815000000.

The previous prime is 133531212200377. The next prime is 133531212200423. The reversal of 133531212200405 is 504002212135331.

It is not a de Polignac number, because 133531212200405 - 2⁶ = 133531212200341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145361390 + ... + 146277120.

It is an arithmetic number, because the mean of its divisors is an integer number (10114043827248).

Almost surely, 2^{133531212200405} is an apocalyptic number.

It is an amenable number.

133531212200405 is a deficient number, since it is larger than the sum of its proper divisors (28293489035563).

133531212200405 is a wasteful number, since it uses less digits than its factorization.

133531212200405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204588.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 133531212200405 its reverse (504002212135331), we get a palindrome (637533424335736).

The spelling of 133531212200405 in words is "one hundred thirty-three trillion, five hundred thirty-one billion, two hundred twelve million, two hundred thousand, four hundred five".