20201454401 has 6 divisors (see below), whose sum is σ = 20589808470. Its totient is φ = 19820292128.

The previous prime is 20201454397. The next prime is 20201454463. The reversal of 20201454401 is 10445410202.

It can be written as a sum of positive squares in 3 ways, for example, as 1991301376 + 18210153025 = 44624^2 + 134945^2 .

It is not a de Polignac number, because 20201454401 - 2² = 20201454397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20201457401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3593036 + ... + 3598653.

It is an arithmetic number, because the mean of its divisors is an integer number (3431634745).

Almost surely, 2^20201454401 is an apocalyptic number.

It is an amenable number.

20201454401 is a deficient number, since it is larger than the sum of its proper divisors (388354069).

20201454401 is an frugal number, since it uses more digits than its factorization.

20201454401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7191795 (or 7191742 counting only the distinct ones).

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

Adding to 20201454401 its reverse (10445410202), we get a palindrome (30646864603).

The spelling of 20201454401 in words is "twenty billion, two hundred one million, four hundred fifty-four thousand, four hundred one".