11054142531 has 36 divisors (see below), whose sum is σ = 16335567976. Its totient is φ = 7203081600.

The previous prime is 11054142523. The next prime is 11054142559. The reversal of 11054142531 is 13524145011.

11054142531 is a `hidden beast` number, since 110 + 5 + 4 + 14 + 2 + 531 = 666.

It is not a de Polignac number, because 11054142531 - 2³ = 11054142523 is a prime.

It is a super-2 number, since 2×11054142531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11054142495 and 11054142504.

It is not an unprimeable number, because it can be changed into a prime (11054142571) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8367351 + ... + 8368671.

Almost surely, 2^11054142531 is an apocalyptic number.

11054142531 is a deficient number, since it is larger than the sum of its proper divisors (5281425445).

11054142531 is a wasteful number, since it uses less digits than its factorization.

11054142531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1764 (or 1708 counting only the distinct ones).

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

Adding to 11054142531 its reverse (13524145011), we get a palindrome (24578287542).

The spelling of 11054142531 in words is "eleven billion, fifty-four million, one hundred forty-two thousand, five hundred thirty-one".