11054541231 has 8 divisors (see below), whose sum is σ = 16377098160. Its totient is φ = 7369694136.

The previous prime is 11054541217. The next prime is 11054541257. The reversal of 11054541231 is 13214545011.

11054541231 is a `hidden beast` number, since 110 + 5 + 4 + 541 + 2 + 3 + 1 = 666.

It is not a de Polignac number, because 11054541231 - 2¹⁹ = 11054016943 is a prime.

It is a super-2 number, since 2×11054541231² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 409427453 = 11054541231 / (1 + 1 + 0 + 5 + 4 + 5 + 4 + 1 + 2 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 11054541195 and 11054541204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11054545231) 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, 204713700 + ... + 204713753.

It is an arithmetic number, because the mean of its divisors is an integer number (2047137270).

Almost surely, 2^11054541231 is an apocalyptic number.

11054541231 is a deficient number, since it is larger than the sum of its proper divisors (5322556929).

11054541231 is an equidigital number, since it uses as much as digits as its factorization.

11054541231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409427462 (or 409427456 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The spelling of 11054541231 in words is "eleven billion, fifty-four million, five hundred forty-one thousand, two hundred thirty-one".