3102031020 has 144 divisors (see below), whose sum is σ = 9751279104. Its totient is φ = 735926400.

The previous prime is 3102030989. The next prime is 3102031043. The reversal of 3102031020 is 201302013.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 3102030987 and 3102031005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 336675 + ... + 345765.

It is an arithmetic number, because the mean of its divisors is an integer number (67717216).

Almost surely, 2^3102031020 is an apocalyptic number.

3102031020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3102031020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4875639552).

3102031020 is an abundant number, since it is smaller than the sum of its proper divisors (6649248084).

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

3102031020 is a wasteful number, since it uses less digits than its factorization.

3102031020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9172 (or 9159 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 3102031020 is about 55695.8797398874. The cubic root of 3102031020 is about 1458.4180996134.

Adding to 3102031020 its reverse (201302013), we get a palindrome (3303333033).

The spelling of 3102031020 in words is "three billion, one hundred two million, thirty-one thousand, twenty".