20130403430 has 64 divisors (see below), whose sum is σ = 37033970688. Its totient is φ = 7877174400.

The previous prime is 20130403417. The next prime is 20130403441. The reversal of 20130403430 is 3430403102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53968724 + ... + 53969096.

It is an arithmetic number, because the mean of its divisors is an integer number (578655792).

Almost surely, 2^20130403430 is an apocalyptic number.

20130403430 is a deficient number, since it is larger than the sum of its proper divisors (16903567258).

20130403430 is a wasteful number, since it uses less digits than its factorization.

20130403430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20130403430 its reverse (3430403102), we get a palindrome (23560806532).

The spelling of 20130403430 in words is "twenty billion, one hundred thirty million, four hundred three thousand, four hundred thirty".