11431034421 has 16 divisors (see below), whose sum is σ = 15417377280. Its totient is φ = 7532743680.

The previous prime is 11431034401. The next prime is 11431034423. The reversal of 11431034421 is 12443013411.

It is not a de Polignac number, because 11431034421 - 2⁵ = 11431034389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11431034391 and 11431034400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11431034423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1542501 + ... + 1549893.

It is an arithmetic number, because the mean of its divisors is an integer number (963586080).

Almost surely, 2^11431034421 is an apocalyptic number.

It is an amenable number.

11431034421 is a deficient number, since it is larger than the sum of its proper divisors (3986342859).

11431034421 is an equidigital number, since it uses as much as digits as its factorization.

11431034421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13276.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 11431034421 its reverse (12443013411), we get a palindrome (23874047832).

The spelling of 11431034421 in words is "eleven billion, four hundred thirty-one million, thirty-four thousand, four hundred twenty-one".