3121414420 has 24 divisors (see below), whose sum is σ = 6781005000. Its totient is φ = 1205511552.

The previous prime is 3121414403. The next prime is 3121414423. The reversal of 3121414420 is 244141213.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 51811204 + 3069603216 = 7198^2 + 55404^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3121414391 and 3121414400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121414423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2690295 + ... + 2691454.

It is an arithmetic number, because the mean of its divisors is an integer number (282541875).

Almost surely, 2^3121414420 is an apocalyptic number.

It is an amenable number.

3121414420 is an abundant number, since it is smaller than the sum of its proper divisors (3659590580).

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

3121414420 is a wasteful number, since it uses less digits than its factorization.

3121414420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5381787 (or 5381785 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 3121414420 is about 55869.6198304588. The cubic root of 3121414420 is about 1461.4494924705.

Adding to 3121414420 its reverse (244141213), we get a palindrome (3365555633).

The spelling of 3121414420 in words is "three billion, one hundred twenty-one million, four hundred fourteen thousand, four hundred twenty".