1102031020 has 24 divisors (see below), whose sum is σ = 2315595744. Its totient is φ = 440558976.

The previous prime is 1102031017. The next prime is 1102031057. The reversal of 1102031020 is 201302011.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1102030988 and 1102031006.

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, 22024 + ... + 51856.

It is an arithmetic number, because the mean of its divisors is an integer number (96483156).

Almost surely, 2^1102031020 is an apocalyptic number.

1102031020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1102031020 is an abundant number, since it is smaller than the sum of its proper divisors (1213564724).

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

1102031020 is a wasteful number, since it uses less digits than its factorization.

1102031020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31689 (or 31687 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1102031020 is about 33196.8525616511. The cubic root of 1102031020 is about 1032.9150525833.

Adding to 1102031020 its reverse (201302011), we get a palindrome (1303333031).

The spelling of 1102031020 in words is "one billion, one hundred two million, thirty-one thousand, twenty".