523402203 has 8 divisors (see below), whose sum is σ = 705064528. Its totient is φ = 345337344.

The previous prime is 523402181. The next prime is 523402211. The reversal of 523402203 is 302204325.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-523402203 is a prime.

It is a super-2 number, since 2×523402203² = 547899732210506418, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 523402203.

It is not an unprimeable number, because it can be changed into a prime (523402003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 899026 + ... + 899607.

It is an arithmetic number, because the mean of its divisors is an integer number (88133066).

Almost surely, 2^523402203 is an apocalyptic number.

523402203 is a deficient number, since it is larger than the sum of its proper divisors (181662325).

523402203 is a wasteful number, since it uses less digits than its factorization.

523402203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798733.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 523402203 is about 22877.9851167012. The cubic root of 523402203 is about 805.8951004325.

Adding to 523402203 its reverse (302204325), we get a palindrome (825606528).

The spelling of 523402203 in words is "five hundred twenty-three million, four hundred two thousand, two hundred three".