11403031430 has 128 divisors (see below), whose sum is σ = 24633262080. Its totient is φ = 3720038400.

The previous prime is 11403031363. The next prime is 11403031439. The reversal of 11403031430 is 3413030411.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11403031439) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18973130 + ... + 18973730.

It is an arithmetic number, because the mean of its divisors is an integer number (192447360).

Almost surely, 2^11403031430 is an apocalyptic number.

11403031430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11403031430 is an abundant number, since it is smaller than the sum of its proper divisors (13230230650).

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

11403031430 is a wasteful number, since it uses less digits than its factorization.

11403031430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 11403031430 its reverse (3413030411), we get a palindrome (14816061841).

The spelling of 11403031430 in words is "eleven billion, four hundred three million, thirty-one thousand, four hundred thirty".