20423433007 has 2 divisors, whose sum is σ = 20423433008. Its totient is φ = 20423433006.

The previous prime is 20423433001. The next prime is 20423433091. The reversal of 20423433007 is 70033432402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20423433007 - 2³¹ = 18275949359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20423433001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10211716503 + 10211716504.

It is an arithmetic number, because the mean of its divisors is an integer number (10211716504).

Almost surely, 2^20423433007 is an apocalyptic number.

20423433007 is a deficient number, since it is larger than the sum of its proper divisors (1).

20423433007 is an equidigital number, since it uses as much as digits as its factorization.

20423433007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 28.

Adding to 20423433007 its reverse (70033432402), we get a palindrome (90456865409).

The spelling of 20423433007 in words is "twenty billion, four hundred twenty-three million, four hundred thirty-three thousand, seven".