20002423331 has 4 divisors (see below), whose sum is σ = 21820825464. Its totient is φ = 18184021200.

The previous prime is 20002423321. The next prime is 20002423423. The reversal of 20002423331 is 13332420002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20002423331 - 2¹⁴ = 20002406947 is a prime.

It is a super-2 number, since 2×20002423331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20002423321) 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, 909201050 + ... + 909201071.

It is an arithmetic number, because the mean of its divisors is an integer number (5455206366).

Almost surely, 2^20002423331 is an apocalyptic number.

20002423331 is a deficient number, since it is larger than the sum of its proper divisors (1818402133).

20002423331 is a wasteful number, since it uses less digits than its factorization.

20002423331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818402132.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20002423331 its reverse (13332420002), we get a palindrome (33334843333).

The spelling of 20002423331 in words is "twenty billion, two million, four hundred twenty-three thousand, three hundred thirty-one".