402124403 has 2 divisors, whose sum is σ = 402124404. Its totient is φ = 402124402.

The previous prime is 402124397. The next prime is 402124427. The reversal of 402124403 is 304421204.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402124403 is a prime.

It is not a weakly prime, because it can be changed into another prime (402124453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201062201 + 201062202.

It is an arithmetic number, because the mean of its divisors is an integer number (201062202).

Almost surely, 2^402124403 is an apocalyptic number.

402124403 is a deficient number, since it is larger than the sum of its proper divisors (1).

402124403 is an equidigital number, since it uses as much as digits as its factorization.

402124403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 402124403 is about 20053.0397446372. The cubic root of 402124403 is about 738.1083918957.

Adding to 402124403 its reverse (304421204), we get a palindrome (706545607).

The spelling of 402124403 in words is "four hundred two million, one hundred twenty-four thousand, four hundred three".