11421440131 has 2 divisors, whose sum is σ = 11421440132. Its totient is φ = 11421440130.

The previous prime is 11421440087. The next prime is 11421440137. The reversal of 11421440131 is 13104412411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11421440131 - 2⁷ = 11421440003 is a prime.

It is a super-2 number, since 2×11421440131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11421440137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5710720065 + 5710720066.

It is an arithmetic number, because the mean of its divisors is an integer number (5710720066).

Almost surely, 2^11421440131 is an apocalyptic number.

11421440131 is a deficient number, since it is larger than the sum of its proper divisors (1).

11421440131 is an equidigital number, since it uses as much as digits as its factorization.

11421440131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 11421440131 its reverse (13104412411), we get a palindrome (24525852542).

The spelling of 11421440131 in words is "eleven billion, four hundred twenty-one million, four hundred forty thousand, one hundred thirty-one".