4021402013 has 4 divisors (see below), whose sum is σ = 4029660000. Its totient is φ = 4013144028.

The previous prime is 4021402009. The next prime is 4021402031. The reversal of 4021402013 is 3102041204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4021402013 - 2² = 4021402009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4021401982 and 4021402000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021402213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4128263 + ... + 4129236.

It is an arithmetic number, because the mean of its divisors is an integer number (1007415000).

Almost surely, 2^4021402013 is an apocalyptic number.

It is an amenable number.

4021402013 is a deficient number, since it is larger than the sum of its proper divisors (8257987).

4021402013 is an equidigital number, since it uses as much as digits as its factorization.

4021402013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8257986.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 4021402013 is about 63414.5252525003. The cubic root of 4021402013 is about 1590.2271490938.

Adding to 4021402013 its reverse (3102041204), we get a palindrome (7123443217).

The spelling of 4021402013 in words is "four billion, twenty-one million, four hundred two thousand, thirteen".