180142011 has 48 divisors (see below), whose sum is σ = 308651200. Its totient is φ = 99097344.

The previous prime is 180142009. The next prime is 180142019. The reversal of 180142011 is 110241081.

It is not a de Polignac number, because 180142011 - 2¹ = 180142009 is a prime.

It is a super-2 number, since 2×180142011² = 64902288254248242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180142019) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 253725 + ... + 254433.

Almost surely, 2^180142011 is an apocalyptic number.

180142011 is a deficient number, since it is larger than the sum of its proper divisors (128509189).

180142011 is a wasteful number, since it uses less digits than its factorization.

180142011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868 (or 865 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 180142011 is about 13421.6992590357. The cubic root of 180142011 is about 564.7700643714.

Adding to 180142011 its reverse (110241081), we get a palindrome (290383092).

The spelling of 180142011 in words is "one hundred eighty million, one hundred forty-two thousand, eleven".