11554531142 has 96 divisors (see below), whose sum is σ = 23380980480. Its totient is φ = 4222653120.

The previous prime is 11554531139. The next prime is 11554531171. The reversal of 11554531142 is 24113545511.

It is a super-2 number, since 2×11554531142² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11554531099 and 11554531108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2106908 + ... + 2112384.

It is an arithmetic number, because the mean of its divisors is an integer number (243551880).

Almost surely, 2^11554531142 is an apocalyptic number.

11554531142 is an abundant number, since it is smaller than the sum of its proper divisors (11826449338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11554531142 is a wasteful number, since it uses less digits than its factorization.

11554531142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5626 (or 5619 counting only the distinct ones).

The product of its digits is 12000, while the sum is 32.

The spelling of 11554531142 in words is "eleven billion, five hundred fifty-four million, five hundred thirty-one thousand, one hundred forty-two".