20210400341 has 2 divisors, whose sum is σ = 20210400342. Its totient is φ = 20210400340.

The previous prime is 20210400323. The next prime is 20210400391. The reversal of 20210400341 is 14300401202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20207759716 + 2640625 = 142154^2 + 1625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20210400341 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20210400391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105200170 + 10105200171.

It is an arithmetic number, because the mean of its divisors is an integer number (10105200171).

Almost surely, 2^20210400341 is an apocalyptic number.

It is an amenable number.

20210400341 is a deficient number, since it is larger than the sum of its proper divisors (1).

20210400341 is an equidigital number, since it uses as much as digits as its factorization.

20210400341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20210400341 its reverse (14300401202), we get a palindrome (34510801543).

The spelling of 20210400341 in words is "twenty billion, two hundred ten million, four hundred thousand, three hundred forty-one".