401043031273 has 2 divisors, whose sum is σ = 401043031274. Its totient is φ = 401043031272.

The previous prime is 401043031261. The next prime is 401043031327. The reversal of 401043031273 is 372130340104.

Together with next prime (401043031327) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 382118076649 + 18924954624 = 618157^2 + 137568^2 .

It is a cyclic number.

It is not a de Polignac number, because 401043031273 - 2²⁹ = 400506160361 is a prime.

It is not a weakly prime, because it can be changed into another prime (401043031243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200521515636 + 200521515637.

It is an arithmetic number, because the mean of its divisors is an integer number (200521515637).

Almost surely, 2^401043031273 is an apocalyptic number.

It is an amenable number.

401043031273 is a deficient number, since it is larger than the sum of its proper divisors (1).

401043031273 is an equidigital number, since it uses as much as digits as its factorization.

401043031273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 28.

Adding to 401043031273 its reverse (372130340104), we get a palindrome (773173371377).

The spelling of 401043031273 in words is "four hundred one billion, forty-three million, thirty-one thousand, two hundred seventy-three".