213041433431431 has 4 divisors (see below), whose sum is σ = 232408836470664. Its totient is φ = 193674030392200.

The previous prime is 213041433431381. The next prime is 213041433431527. The reversal of 213041433431431 is 134134334140312.

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

It is a cyclic number.

It is not a de Polignac number, because 213041433431431 - 2³³ = 213032843496839 is a prime.

It is a super-2 number, since 2×213041433431431² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213041433432431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9683701519600 + ... + 9683701519621.

It is an arithmetic number, because the mean of its divisors is an integer number (58102209117666).

Almost surely, 2^{213041433431431} is an apocalyptic number.

213041433431431 is a deficient number, since it is larger than the sum of its proper divisors (19367403039233).

213041433431431 is a wasteful number, since it uses less digits than its factorization.

213041433431431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19367403039232.

The product of its (nonzero) digits is 124416, while the sum is 37.

Adding to 213041433431431 its reverse (134134334140312), we get a palindrome (347175767571743).

The spelling of 213041433431431 in words is "two hundred thirteen trillion, forty-one billion, four hundred thirty-three million, four hundred thirty-one thousand, four hundred thirty-one".