20020051401 has 8 divisors (see below), whose sum is σ = 30506745024. Its totient is φ = 11440029360.

The previous prime is 20020051397. The next prime is 20020051421. The reversal of 20020051401 is 10415002002.

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

It is not a de Polignac number, because 20020051401 - 2² = 20020051397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20020051421) 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, 476667870 + ... + 476667911.

It is an arithmetic number, because the mean of its divisors is an integer number (3813343128).

Almost surely, 2^20020051401 is an apocalyptic number.

20020051401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20020051401 is a deficient number, since it is larger than the sum of its proper divisors (10486693623).

20020051401 is an equidigital number, since it uses as much as digits as its factorization.

20020051401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953335791.

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 20020051401 its reverse (10415002002), we get a palindrome (30435053403).

The spelling of 20020051401 in words is "twenty billion, twenty million, fifty-one thousand, four hundred one".