3131011420 has 24 divisors (see below), whose sum is σ = 6576424848. Its totient is φ = 1252156800.

The previous prime is 3131011409. The next prime is 3131011427. The reversal of 3131011420 is 241101313.

It is a junction number, because it is equal to n+sod(n) for n = 3131011394 and 3131011403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131011427) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 114915 + ... + 139525.

It is an arithmetic number, because the mean of its divisors is an integer number (274017702).

Almost surely, 2^3131011420 is an apocalyptic number.

It is an amenable number.

3131011420 is an abundant number, since it is smaller than the sum of its proper divisors (3445413428).

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

3131011420 is a wasteful number, since it uses less digits than its factorization.

3131011420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30981 (or 30979 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 3131011420 is about 55955.4413797264. The cubic root of 3131011420 is about 1462.9457352254.

Adding to 3131011420 its reverse (241101313), we get a palindrome (3372112733).

The spelling of 3131011420 in words is "three billion, one hundred thirty-one million, eleven thousand, four hundred twenty".