4013130421 has 2 divisors, whose sum is σ = 4013130422. Its totient is φ = 4013130420.

The previous prime is 4013130379. The next prime is 4013130437. The reversal of 4013130421 is 1240313104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3932669521 + 80460900 = 62711^2 + 8970^2 .

It is a cyclic number.

It is not a de Polignac number, because 4013130421 - 2⁷ = 4013130293 is a prime.

It is a super-2 number, since 2×4013130421² = 32210431551911274482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4013130481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2006565210 + 2006565211.

It is an arithmetic number, because the mean of its divisors is an integer number (2006565211).

Almost surely, 2^4013130421 is an apocalyptic number.

It is an amenable number.

4013130421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4013130421 is an equidigital number, since it uses as much as digits as its factorization.

4013130421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 4013130421 is about 63349.2732476072. The cubic root of 4013130421 is about 1589.1360918761.

Adding to 4013130421 its reverse (1240313104), we get a palindrome (5253443525).

The spelling of 4013130421 in words is "four billion, thirteen million, one hundred thirty thousand, four hundred twenty-one".