402103523 has 8 divisors (see below), whose sum is σ = 415993536. Its totient is φ = 388408000.

The previous prime is 402103501. The next prime is 402103547. The reversal of 402103523 is 325301204.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 402103523 - 2⁸ = 402103267 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402103495 and 402103504.

It is not an unprimeable number, because it can be changed into a prime (402103223) 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, 44411 + ... + 52692.

It is an arithmetic number, because the mean of its divisors is an integer number (51999192).

Almost surely, 2^402103523 is an apocalyptic number.

402103523 is a deficient number, since it is larger than the sum of its proper divisors (13890013).

402103523 is a wasteful number, since it uses less digits than its factorization.

402103523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97245.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 402103523 is about 20052.5191185547. The cubic root of 402103523 is about 738.0956164379.

Adding to 402103523 its reverse (325301204), we get a palindrome (727404727).

The spelling of 402103523 in words is "four hundred two million, one hundred three thousand, five hundred twenty-three".