2020400117 has 2 divisors, whose sum is σ = 2020400118. Its totient is φ = 2020400116.

The previous prime is 2020400113. The next prime is 2020400141. The reversal of 2020400117 is 7110040202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1675592356 + 344807761 = 40934^2 + 18569^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020400117 - 2² = 2020400113 is a prime.

It is a super-2 number, since 2×2020400117² = 8164033265547227378, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2020400095 and 2020400104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2020400113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010200058 + 1010200059.

It is an arithmetic number, because the mean of its divisors is an integer number (1010200059).

Almost surely, 2^2020400117 is an apocalyptic number.

It is an amenable number.

2020400117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020400117 is an equidigital number, since it uses as much as digits as its factorization.

2020400117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 2020400117 is about 44948.8611312901. The cubic root of 2020400117 is about 1264.1903231561.

Adding to 2020400117 its reverse (7110040202), we get a palindrome (9130440319).

The spelling of 2020400117 in words is "two billion, twenty million, four hundred thousand, one hundred seventeen".