4121031420 has 288 divisors, whose sum is σ = 14126112000. Its totient is φ = 963809280.

The previous prime is 4121031419. The next prime is 4121031479. The reversal of 4121031420 is 241301214.

4121031420 = 3576² + 3577² + ... + 3872².

4121031420 is a `hidden beast` number, since 4 + 1 + 210 + 31 + 420 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 4121031393 and 4121031402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8258331 + ... + 8258829.

It is an arithmetic number, because the mean of its divisors is an integer number (49049000).

Almost surely, 2^4121031420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4121031420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7063056000).

4121031420 is an abundant number, since it is smaller than the sum of its proper divisors (10005080580).

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

4121031420 is a wasteful number, since it uses less digits than its factorization.

4121031420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 4121031420 is about 64195.2601054003. The cubic root of 4121031420 is about 1603.2526825335.

Adding to 4121031420 its reverse (241301214), we get a palindrome (4362332634).

The spelling of 4121031420 in words is "four billion, one hundred twenty-one million, thirty-one thousand, four hundred twenty".