11231411512111 has 20 divisors (see below), whose sum is σ = 13672209246192. Its totient is φ = 9208362188256.

The previous prime is 11231411511979. The next prime is 11231411512117. The reversal of 11231411512111 is 11121511413211.

It is not a de Polignac number, because 11231411512111 - 2¹³ = 11231411503919 is a prime.

It is a super-2 number, since 2×11231411512111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231411512117) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 101636206 + ... + 101746651.

Almost surely, 2^{11231411512111} is an apocalyptic number.

11231411512111 is a deficient number, since it is larger than the sum of its proper divisors (2440797734081).

11231411512111 is an frugal number, since it uses more digits than its factorization.

11231411512111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203382908 (or 203382887 counting only the distinct ones).

The product of its digits is 240, while the sum is 25.

Adding to 11231411512111 its reverse (11121511413211), we get a palindrome (22352922925322).

The spelling of 11231411512111 in words is "eleven trillion, two hundred thirty-one billion, four hundred eleven million, five hundred twelve thousand, one hundred eleven".