403264123543 has 4 divisors (see below), whose sum is σ = 403397701960. Its totient is φ = 403130545128.

The previous prime is 403264123519. The next prime is 403264123553. The reversal of 403264123543 is 345321462304.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-403264123543 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 (403264123513) 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, 66784680 + ... + 66790717.

It is an arithmetic number, because the mean of its divisors is an integer number (100849425490).

Almost surely, 2^403264123543 is an apocalyptic number.

403264123543 is a deficient number, since it is larger than the sum of its proper divisors (133578417).

403264123543 is a wasteful number, since it uses less digits than its factorization.

403264123543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133578416.

The product of its (nonzero) digits is 207360, while the sum is 37.

Adding to 403264123543 its reverse (345321462304), we get a palindrome (748585585847).

The spelling of 403264123543 in words is "four hundred three billion, two hundred sixty-four million, one hundred twenty-three thousand, five hundred forty-three".