402403423420323 has 32 divisors (see below), whose sum is σ = 644452267092480. Its totient is φ = 246691306023840.

The previous prime is 402403423420307. The next prime is 402403423420357. The reversal of 402403423420323 is 323024324304204.

402403423420323 is a `hidden beast` number, since 4 + 0 + 2 + 4 + 0 + 3 + 423 + 4 + 203 + 23 = 666.

It is not a de Polignac number, because 402403423420323 - 2⁴ = 402403423420307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402403423420123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2179467573 + ... + 2179652198.

It is an arithmetic number, because the mean of its divisors is an integer number (20139133346640).

Almost surely, 2^{402403423420323} is an apocalyptic number.

402403423420323 is a deficient number, since it is larger than the sum of its proper divisors (242048843672157).

402403423420323 is a wasteful number, since it uses less digits than its factorization.

402403423420323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4359120056 (or 4359120050 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 36.

Adding to 402403423420323 its reverse (323024324304204), we get a palindrome (725427747724527).

The spelling of 402403423420323 in words is "four hundred two trillion, four hundred three billion, four hundred twenty-three million, four hundred twenty thousand, three hundred twenty-three".