11208813431 has 8 divisors (see below), whose sum is σ = 11803055280. Its totient is φ = 10615002048.

The previous prime is 11208813419. The next prime is 11208813443. The reversal of 11208813431 is 13431880211.

It is an interprime number because it is at equal distance from previous prime (11208813419) and next prime (11208813443).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11208813431 - 2⁶ = 11208813367 is a prime.

It is a super-2 number, since 2×11208813431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11208813731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53456 + ... + 158981.

It is an arithmetic number, because the mean of its divisors is an integer number (1475381910).

Almost surely, 2^11208813431 is an apocalyptic number.

11208813431 is a deficient number, since it is larger than the sum of its proper divisors (594241849).

11208813431 is a wasteful number, since it uses less digits than its factorization.

11208813431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215233.

The product of its (nonzero) digits is 4608, while the sum is 32.

The spelling of 11208813431 in words is "eleven billion, two hundred eight million, eight hundred thirteen thousand, four hundred thirty-one".