401126356201 has 2 divisors, whose sum is σ = 401126356202. Its totient is φ = 401126356200.

The previous prime is 401126356171. The next prime is 401126356207. The reversal of 401126356201 is 102653621104.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 328215555801 + 72910800400 = 572901^2 + 270020^2 .

It is a cyclic number.

It is not a de Polignac number, because 401126356201 - 2⁹ = 401126355689 is a prime.

It is not a weakly prime, because it can be changed into another prime (401126356207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200563178100 + 200563178101.

It is an arithmetic number, because the mean of its divisors is an integer number (200563178101).

Almost surely, 2^401126356201 is an apocalyptic number.

It is an amenable number.

401126356201 is a deficient number, since it is larger than the sum of its proper divisors (1).

401126356201 is an equidigital number, since it uses as much as digits as its factorization.

401126356201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 401126356201 its reverse (102653621104), we get a palindrome (503779977305).

The spelling of 401126356201 in words is "four hundred one billion, one hundred twenty-six million, three hundred fifty-six thousand, two hundred one".