11144351431 has 4 divisors (see below), whose sum is σ = 11150309664. Its totient is φ = 11138393200.

The previous prime is 11144351429. The next prime is 11144351443. The reversal of 11144351431 is 13415344111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11144351431 - 2¹ = 11144351429 is a prime.

It is a super-2 number, since 2×11144351431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11144351431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11144351531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2976310 + ... + 2980051.

It is an arithmetic number, because the mean of its divisors is an integer number (2787577416).

Almost surely, 2^11144351431 is an apocalyptic number.

11144351431 is a deficient number, since it is larger than the sum of its proper divisors (5958233).

11144351431 is an equidigital number, since it uses as much as digits as its factorization.

11144351431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5958232.

The product of its digits is 2880, while the sum is 28.

Adding to 11144351431 its reverse (13415344111), we get a palindrome (24559695542).

The spelling of 11144351431 in words is "eleven billion, one hundred forty-four million, three hundred fifty-one thousand, four hundred thirty-one".