1102520403 has 24 divisors (see below), whose sum is σ = 1666986048. Its totient is φ = 728127144.

The previous prime is 1102520399. The next prime is 1102520437. The reversal of 1102520403 is 3040252011.

1102520403 is a `hidden beast` number, since 1 + 10 + 252 + 0 + 403 = 666.

It is not a de Polignac number, because 1102520403 - 2² = 1102520399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1102520453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4800 + ... + 47202.

It is an arithmetic number, because the mean of its divisors is an integer number (69457752).

Almost surely, 2^1102520403 is an apocalyptic number.

1102520403 is a deficient number, since it is larger than the sum of its proper divisors (564465645).

1102520403 is an equidigital number, since it uses as much as digits as its factorization.

1102520403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42525 (or 42513 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1102520403 is about 33204.2226682089. Note that the first 3 decimals coincide. The cubic root of 1102520403 is about 1033.0679267617.

Adding to 1102520403 its reverse (3040252011), we get a palindrome (4142772414).

The spelling of 1102520403 in words is "one billion, one hundred two million, five hundred twenty thousand, four hundred three".