20441245001 has 4 divisors (see below), whose sum is σ = 20442437652. Its totient is φ = 20440052352.

The previous prime is 20441244979. The next prime is 20441245021. The reversal of 20441245001 is 10054214402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10054214402 = 2 ⋅5027107201.

It can be written as a sum of positive squares in 2 ways, for example, as 6652849225 + 13788395776 = 81565^2 + 117424^2 .

It is a cyclic number.

It is not a de Polignac number, because 20441245001 - 2¹⁴ = 20441228617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20441245021) 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, 570236 + ... + 605021.

It is an arithmetic number, because the mean of its divisors is an integer number (5110609413).

Almost surely, 2^20441245001 is an apocalyptic number.

It is an amenable number.

20441245001 is a deficient number, since it is larger than the sum of its proper divisors (1192651).

20441245001 is a wasteful number, since it uses less digits than its factorization.

20441245001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192650.

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 20441245001 its reverse (10054214402), we get a palindrome (30495459403).

The spelling of 20441245001 in words is "twenty billion, four hundred forty-one million, two hundred forty-five thousand, one".