20354135401 has 8 divisors (see below), whose sum is σ = 20602419264. Its totient is φ = 20105924400.

The previous prime is 20354135327. The next prime is 20354135437. The reversal of 20354135401 is 10453145302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20354135401 - 2¹¹ = 20354133353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20354135401.

It is not an unprimeable number, because it can be changed into a prime (20354135101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729235 + ... + 756631.

It is an arithmetic number, because the mean of its divisors is an integer number (2575302408).

Almost surely, 2^20354135401 is an apocalyptic number.

It is an amenable number.

20354135401 is a deficient number, since it is larger than the sum of its proper divisors (248283863).

20354135401 is an equidigital number, since it uses as much as digits as its factorization.

20354135401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36431.

The product of its (nonzero) digits is 7200, while the sum is 28.

Subtracting from 20354135401 its reverse (10453145302), we obtain a palindrome (9900990099).

The spelling of 20354135401 in words is "twenty billion, three hundred fifty-four million, one hundred thirty-five thousand, four hundred one".