11344155431 has 16 divisors (see below), whose sum is σ = 13115800320. Its totient is φ = 9610894080.

The previous prime is 11344155413. The next prime is 11344155497. The reversal of 11344155431 is 13455144311.

It is a cyclic number.

It is not a de Polignac number, because 11344155431 - 2⁶ = 11344155367 is a prime.

It is a super-2 number, since 2×11344155431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11344155401) 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, 195191 + ... + 246551.

It is an arithmetic number, because the mean of its divisors is an integer number (819737520).

Almost surely, 2^11344155431 is an apocalyptic number.

11344155431 is a deficient number, since it is larger than the sum of its proper divisors (1771644889).

11344155431 is a wasteful number, since it uses less digits than its factorization.

11344155431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51734.

The product of its digits is 14400, while the sum is 32.

Adding to 11344155431 its reverse (13455144311), we get a palindrome (24799299742).

The spelling of 11344155431 in words is "eleven billion, three hundred forty-four million, one hundred fifty-five thousand, four hundred thirty-one".