102040400403 has 16 divisors (see below), whose sum is σ = 154387368960. Its totient is φ = 66579551208.

The previous prime is 102040400401. The next prime is 102040400443. The reversal of 102040400403 is 304004040201.

It is not a de Polignac number, because 102040400403 - 2¹ = 102040400401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102040400401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40203775 + ... + 40206312.

It is an arithmetic number, because the mean of its divisors is an integer number (9649210560).

Almost surely, 2^102040400403 is an apocalyptic number.

102040400403 is a deficient number, since it is larger than the sum of its proper divisors (52346968557).

102040400403 is an equidigital number, since it uses as much as digits as its factorization.

102040400403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80410143 (or 80410137 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 102040400403 its reverse (304004040201), we get a palindrome (406044440604).

The spelling of 102040400403 in words is "one hundred two billion, forty million, four hundred thousand, four hundred three".