3131020230 has 64 divisors (see below), whose sum is σ = 8133350400. Its totient is φ = 766820736.

The previous prime is 3131020213. The next prime is 3131020289. The reversal of 3131020230 is 320201313.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57439 + ... + 97781.

It is an arithmetic number, because the mean of its divisors is an integer number (127083600).

Almost surely, 2^3131020230 is an apocalyptic number.

3131020230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3131020230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4066675200).

3131020230 is an abundant number, since it is smaller than the sum of its proper divisors (5002330170).

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

3131020230 is a wasteful number, since it uses less digits than its factorization.

3131020230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40565.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 3131020230 is about 55955.5201030247. The cubic root of 3131020230 is about 1462.9471073635.

Adding to 3131020230 its reverse (320201313), we get a palindrome (3451221543).

The spelling of 3131020230 in words is "three billion, one hundred thirty-one million, twenty thousand, two hundred thirty".