4231013204021 has 4 divisors (see below), whose sum is σ = 4414970299872. Its totient is φ = 4047056108172.

The previous prime is 4231013203981. The next prime is 4231013204053. The reversal of 4231013204021 is 1204023101324.

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 4231013204021 - 2¹⁸ = 4231012941877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 183957095827 = 4231013204021 / (4 + 2 + 3 + 1 + 0 + 1 + 3 + 2 + 0 + 4 + 0 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4231013204081) 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, 91978547891 + ... + 91978547936.

It is an arithmetic number, because the mean of its divisors is an integer number (1103742574968).

Almost surely, 2^{4231013204021} is an apocalyptic number.

It is an amenable number.

4231013204021 is a deficient number, since it is larger than the sum of its proper divisors (183957095851).

4231013204021 is a wasteful number, since it uses less digits than its factorization.

4231013204021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183957095850.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 4231013204021 its reverse (1204023101324), we get a palindrome (5435036305345).

The spelling of 4231013204021 in words is "four trillion, two hundred thirty-one billion, thirteen million, two hundred four thousand, twenty-one".