11430031403 has 12 divisors (see below), whose sum is σ = 13314489552. Its totient is φ = 9783663120.

The previous prime is 11430031399. The next prime is 11430031409. The reversal of 11430031403 is 30413003411.

It is not a de Polignac number, because 11430031403 - 2² = 11430031399 is a prime.

It is a super-2 number, since 2×11430031403² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11430031409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124808 + ... + 196053.

It is an arithmetic number, because the mean of its divisors is an integer number (1109540796).

Almost surely, 2^11430031403 is an apocalyptic number.

11430031403 is a deficient number, since it is larger than the sum of its proper divisors (1884458149).

11430031403 is an equidigital number, since it uses as much as digits as its factorization.

11430031403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321602 (or 321595 counting only the distinct ones).

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

Adding to 11430031403 its reverse (30413003411), we get a palindrome (41843034814).

The spelling of 11430031403 in words is "eleven billion, four hundred thirty million, thirty-one thousand, four hundred three".