4113142021 has 4 divisors (see below), whose sum is σ = 4329623200. Its totient is φ = 3896660844.

The previous prime is 4113141997. The next prime is 4113142039. The reversal of 4113142021 is 1202413114.

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 4113142021 - 2²⁹ = 3576271109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 216481159 = 4113142021 / (4 + 1 + 1 + 3 + 1 + 4 + 2 + 0 + 2 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4113142021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4113142091) 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, 108240561 + ... + 108240598.

It is an arithmetic number, because the mean of its divisors is an integer number (1082405800).

Almost surely, 2^4113142021 is an apocalyptic number.

It is an amenable number.

4113142021 is a deficient number, since it is larger than the sum of its proper divisors (216481179).

4113142021 is a wasteful number, since it uses less digits than its factorization.

4113142021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216481178.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 4113142021 is about 64133.7822134326. The cubic root of 4113142021 is about 1602.2289274690.

Adding to 4113142021 its reverse (1202413114), we get a palindrome (5315555135).

The spelling of 4113142021 in words is "four billion, one hundred thirteen million, one hundred forty-two thousand, twenty-one".