402323122355503 has 4 divisors (see below), whose sum is σ = 416196333471240. Its totient is φ = 388449911239768.

The previous prime is 402323122355501. The next prime is 402323122355569. The reversal of 402323122355503 is 305553221323204.

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 402323122355503 - 2¹ = 402323122355501 is a prime.

It is a super-2 number, since 2×402323122355503² (a number of 30 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 (402323122355501) 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, 6936605557825 + ... + 6936605557882.

It is an arithmetic number, because the mean of its divisors is an integer number (104049083367810).

Almost surely, 2^{402323122355503} is an apocalyptic number.

402323122355503 is a deficient number, since it is larger than the sum of its proper divisors (13873211115737).

402323122355503 is a wasteful number, since it uses less digits than its factorization.

402323122355503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13873211115736.

The product of its (nonzero) digits is 648000, while the sum is 40.

Adding to 402323122355503 its reverse (305553221323204), we get a palindrome (707876343678707).

The spelling of 402323122355503 in words is "four hundred two trillion, three hundred twenty-three billion, one hundred twenty-two million, three hundred fifty-five thousand, five hundred three".