3131442300 has 144 divisors (see below), whose sum is σ = 10401834240. Its totient is φ = 712496640.

The previous prime is 3131442263. The next prime is 3131442317. The reversal of 3131442300 is 32441313.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 473416 + ... + 479984.

It is an arithmetic number, because the mean of its divisors is an integer number (72234960).

Almost surely, 2^3131442300 is an apocalyptic number.

3131442300 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 3131442300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5200917120).

3131442300 is an abundant number, since it is smaller than the sum of its proper divisors (7270391940).

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

3131442300 is a wasteful number, since it uses less digits than its factorization.

3131442300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6820 (or 6813 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 3131442300 is about 55959.2914536987. The cubic root of 3131442300 is about 1463.0128408196.

Adding to 3131442300 its reverse (32441313), we get a palindrome (3163883613).

The spelling of 3131442300 in words is "three billion, one hundred thirty-one million, four hundred forty-two thousand, three hundred".