3130002020 has 24 divisors (see below), whose sum is σ = 6663048504. Its totient is φ = 1234849536.

The previous prime is 3130001983. The next prime is 3130002023. The reversal of 3130002020 is 202000313.

It can be written as a sum of positive squares in 4 ways, for example, as 451732516 + 2678269504 = 21254^2 + 51752^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3130001992 and 3130002010.

It is not an unprimeable number, because it can be changed into a prime (3130002023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1070459 + ... + 1073378.

It is an arithmetic number, because the mean of its divisors is an integer number (277627021).

Almost surely, 2^3130002020 is an apocalyptic number.

It is an amenable number.

3130002020 is an abundant number, since it is smaller than the sum of its proper divisors (3533046484).

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

3130002020 is a wasteful number, since it uses less digits than its factorization.

3130002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143919 (or 2143917 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 3130002020 is about 55946.4209757872. The cubic root of 3130002020 is about 1462.7885063575.

Adding to 3130002020 its reverse (202000313), we get a palindrome (3332002333).

It can be divided in two parts, 31300020 and 20, that multiplied together give a square (626000400 = 25020²).

The spelling of 3130002020 in words is "three billion, one hundred thirty million, two thousand, twenty".