20213112401 has 2 divisors, whose sum is σ = 20213112402. Its totient is φ = 20213112400.

The previous prime is 20213112391. The next prime is 20213112427. The reversal of 20213112401 is 10421131202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20100434176 + 112678225 = 141776^2 + 10615^2 .

It is a cyclic number.

It is not a de Polignac number, because 20213112401 - 2¹⁴ = 20213096017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20213112401.

It is not a weakly prime, because it can be changed into another prime (20213117401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106556200 + 10106556201.

It is an arithmetic number, because the mean of its divisors is an integer number (10106556201).

Almost surely, 2^20213112401 is an apocalyptic number.

It is an amenable number.

20213112401 is a deficient number, since it is larger than the sum of its proper divisors (1).

20213112401 is an equidigital number, since it uses as much as digits as its factorization.

20213112401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20213112401 its reverse (10421131202), we get a palindrome (30634243603).

The spelling of 20213112401 in words is "twenty billion, two hundred thirteen million, one hundred twelve thousand, four hundred one".