11020131 has 40 divisors (see below), whose sum is σ = 17877024. Its totient is φ = 6739200.

The previous prime is 11020129. The next prime is 11020181. The reversal of 11020131 is 13102011.

It is not a de Polignac number, because 11020131 - 2¹ = 11020129 is a prime.

It is a super-2 number, since 2×11020131² = 242886574514322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (11020181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 72906 + ... + 73056.

Almost surely, 2^11020131 is an apocalyptic number.

11020131 is a deficient number, since it is larger than the sum of its proper divisors (6856893).

11020131 is a wasteful number, since it uses less digits than its factorization.

11020131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 11020131 is about 3319.6582655448. The cubic root of 11020131 is about 222.5335959033.

Adding to 11020131 its reverse (13102011), we get a palindrome (24122142).

The spelling of 11020131 in words is "eleven million, twenty thousand, one hundred thirty-one".