11111431101 has 8 divisors (see below), whose sum is σ = 14816060160. Its totient is φ = 7407211392.

The previous prime is 11111431049. The next prime is 11111431127. The reversal of 11111431101 is 10113411111.

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

It is not a de Polignac number, because 11111431101 - 2¹³ = 11111422909 is a prime.

It is a super-2 number, since 2×11111431101² (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 (11111431151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32116 + ... + 152493.

It is an arithmetic number, because the mean of its divisors is an integer number (1852007520).

Almost surely, 2^11111431101 is an apocalyptic number.

It is an amenable number.

11111431101 is a deficient number, since it is larger than the sum of its proper divisors (3704629059).

11111431101 is a wasteful number, since it uses less digits than its factorization.

11111431101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204675.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 11111431101 its reverse (10113411111), we get a palindrome (21224842212).

The spelling of 11111431101 in words is "eleven billion, one hundred eleven million, four hundred thirty-one thousand, one hundred one".