20423113001 has 2 divisors, whose sum is σ = 20423113002. Its totient is φ = 20423113000.

The previous prime is 20423112989. The next prime is 20423113019. The reversal of 20423113001 is 10031132402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20381845225 + 41267776 = 142765^2 + 6424^2 .

It is a cyclic number.

It is not a de Polignac number, because 20423113001 - 2¹⁸ = 20422850857 is a prime.

It is not a weakly prime, because it can be changed into another prime (20423113301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10211556500 + 10211556501.

It is an arithmetic number, because the mean of its divisors is an integer number (10211556501).

Almost surely, 2^20423113001 is an apocalyptic number.

It is an amenable number.

20423113001 is a deficient number, since it is larger than the sum of its proper divisors (1).

20423113001 is an equidigital number, since it uses as much as digits as its factorization.

20423113001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20423113001 its reverse (10031132402), we get a palindrome (30454245403).

The spelling of 20423113001 in words is "twenty billion, four hundred twenty-three million, one hundred thirteen thousand, one".