13423431234533 has 4 divisors (see below), whose sum is σ = 13423526893068. Its totient is φ = 13423335576000.

The previous prime is 13423431234403. The next prime is 13423431234547. The reversal of 13423431234533 is 33543213432431.

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 2347860546529 + 11075570688004 = 1532273^2 + 3327998^2 .

It is a cyclic number.

It is not a de Polignac number, because 13423431234533 - 2²⁴ = 13423414457317 is a prime.

It is a super-2 number, since 2×13423431234533² (a number of 27 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 (13423431234593) 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, 47618468 + ... + 47899533.

It is an arithmetic number, because the mean of its divisors is an integer number (3355881723267).

Almost surely, 2^{13423431234533} is an apocalyptic number.

It is an amenable number.

13423431234533 is a deficient number, since it is larger than the sum of its proper divisors (95658535).

13423431234533 is an equidigital number, since it uses as much as digits as its factorization.

13423431234533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95658534.

The product of its digits is 933120, while the sum is 41.

Adding to 13423431234533 its reverse (33543213432431), we get a palindrome (46966644666964).

The spelling of 13423431234533 in words is "thirteen trillion, four hundred twenty-three billion, four hundred thirty-one million, two hundred thirty-four thousand, five hundred thirty-three".