401155432210397 has 2 divisors, whose sum is σ = 401155432210398. Its totient is φ = 401155432210396.

The previous prime is 401155432210387. The next prime is 401155432210453. The reversal of 401155432210397 is 793012234551104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 401050048222756 + 105383987641 = 20026234^2 + 324629^2 .

It is a cyclic number.

It is not a de Polignac number, because 401155432210397 - 2¹⁰ = 401155432209373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401155432210387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200577716105198 + 200577716105199.

It is an arithmetic number, because the mean of its divisors is an integer number (200577716105199).

Almost surely, 2^{401155432210397} is an apocalyptic number.

It is an amenable number.

401155432210397 is a deficient number, since it is larger than the sum of its proper divisors (1).

401155432210397 is an equidigital number, since it uses as much as digits as its factorization.

401155432210397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 47.

The spelling of 401155432210397 in words is "four hundred one trillion, one hundred fifty-five billion, four hundred thirty-two million, two hundred ten thousand, three hundred ninety-seven".