1116021031 has 8 divisors (see below), whose sum is σ = 1178020400. Its totient is φ = 1057276584.

The previous prime is 1116021001. The next prime is 1116021037. The reversal of 1116021031 is 1301206111.

It is not a de Polignac number, because 1116021031 - 2⁵ = 1116020999 is a prime.

It is a super-2 number, since 2×1116021031² = 2491005883268605922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1116020996 and 1116021014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116021037) 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 7 ways as a sum of consecutive naturals, for example, 74496 + ... + 88213.

It is an arithmetic number, because the mean of its divisors is an integer number (147252550).

Almost surely, 2^1116021031 is an apocalyptic number.

1116021031 is a deficient number, since it is larger than the sum of its proper divisors (61999369).

1116021031 is an frugal number, since it uses more digits than its factorization.

1116021031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162766 (or 162728 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1116021031 is about 33406.9009487561. The cubic root of 1116021031 is about 1037.2675532091.

Adding to 1116021031 its reverse (1301206111), we get a palindrome (2417227142).

The spelling of 1116021031 in words is "one billion, one hundred sixteen million, twenty-one thousand, thirty-one".