11142032420 has 24 divisors (see below), whose sum is σ = 23405896248. Its totient is φ = 4455360000.

The previous prime is 11142032329. The next prime is 11142032443. The reversal of 11142032420 is 2423024111.

It can be written as a sum of positive squares in 4 ways, for example, as 90136036 + 11051896384 = 9494^2 + 105128^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 11142032392 and 11142032401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26831 + ... + 151670.

It is an arithmetic number, because the mean of its divisors is an integer number (975245677).

Almost surely, 2^11142032420 is an apocalyptic number.

11142032420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11142032420 is an abundant number, since it is smaller than the sum of its proper divisors (12263863828).

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

11142032420 is a wasteful number, since it uses less digits than its factorization.

11142032420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181631 (or 181629 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11142032420 its reverse (2423024111), we get a palindrome (13565056531).

The spelling of 11142032420 in words is "eleven billion, one hundred forty-two million, thirty-two thousand, four hundred twenty".