11354542111 has 6 divisors (see below), whose sum is σ = 12480612536. Its totient is φ = 10322310900.

The previous prime is 11354542027. The next prime is 11354542127. The reversal of 11354542111 is 11124545311.

It is a happy number.

It is not a de Polignac number, because 11354542111 - 2¹⁹ = 11354017823 is a prime.

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 11354542111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11354542151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46919475 + ... + 46919716.

Almost surely, 2^11354542111 is an apocalyptic number.

11354542111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11354542111 is a deficient number, since it is larger than the sum of its proper divisors (1126070425).

11354542111 is an equidigital number, since it uses as much as digits as its factorization.

11354542111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93839213 (or 93839202 counting only the distinct ones).

The product of its digits is 2400, while the sum is 28.

The spelling of 11354542111 in words is "eleven billion, three hundred fifty-four million, five hundred forty-two thousand, one hundred eleven".