30402140403 has 16 divisors (see below), whose sum is σ = 41485948416. Its totient is φ = 19793373600.

The previous prime is 30402140399. The next prime is 30402140411. The reversal of 30402140403 is 30404120403.

It is not a de Polignac number, because 30402140403 - 2² = 30402140399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30402140403.

It is not an unprimeable number, because it can be changed into a prime (30402140443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 906001 + ... + 938957.

It is an arithmetic number, because the mean of its divisors is an integer number (2592871776).

Almost surely, 2^30402140403 is an apocalyptic number.

30402140403 is a deficient number, since it is larger than the sum of its proper divisors (11083808013).

30402140403 is a wasteful number, since it uses less digits than its factorization.

30402140403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40154.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 30402140403 its reverse (30404120403), we get a palindrome (60806260806).

The spelling of 30402140403 in words is "thirty billion, four hundred two million, one hundred forty thousand, four hundred three".