11404321031 has 2 divisors, whose sum is σ = 11404321032. Its totient is φ = 11404321030.

The previous prime is 11404321009. The next prime is 11404321073. The reversal of 11404321031 is 13012340411.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11404321031 is a prime.

It is a super-2 number, since 2×11404321031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11404320994 and 11404321012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11404321001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5702160515 + 5702160516.

It is an arithmetic number, because the mean of its divisors is an integer number (5702160516).

Almost surely, 2^11404321031 is an apocalyptic number.

11404321031 is a deficient number, since it is larger than the sum of its proper divisors (1).

11404321031 is an equidigital number, since it uses as much as digits as its factorization.

11404321031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11404321031 its reverse (13012340411), we get a palindrome (24416661442).

The spelling of 11404321031 in words is "eleven billion, four hundred four million, three hundred twenty-one thousand, thirty-one".