2102403042 has 48 divisors (see below), whose sum is σ = 4667053248. Its totient is φ = 683635680.

The previous prime is 2102403019. The next prime is 2102403071. The reversal of 2102403042 is 2403042012.

It is a super-3 number, since 3×2102403042³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 945492 + ... + 947712.

It is an arithmetic number, because the mean of its divisors is an integer number (97230276).

Almost surely, 2^2102403042 is an apocalyptic number.

2102403042 is an abundant number, since it is smaller than the sum of its proper divisors (2564650206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2102403042 is a wasteful number, since it uses less digits than its factorization.

2102403042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3495 (or 3492 counting only the distinct ones).

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

The square root of 2102403042 is about 45851.9687908818. The cubic root of 2102403042 is about 1281.0674368094.

Adding to 2102403042 its reverse (2403042012), we get a palindrome (4505445054).

The spelling of 2102403042 in words is "two billion, one hundred two million, four hundred three thousand, forty-two".