401155320032123 has 2 divisors, whose sum is σ = 401155320032124. Its totient is φ = 401155320032122.

The previous prime is 401155320032083. The next prime is 401155320032147. The reversal of 401155320032123 is 321230023551104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401155320032123 - 2⁸ = 401155320031867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 401155320032123.

It is not a weakly prime, because it can be changed into another prime (401155320532123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200577660016061 + 200577660016062.

It is an arithmetic number, because the mean of its divisors is an integer number (200577660016062).

Almost surely, 2^{401155320032123} is an apocalyptic number.

401155320032123 is a deficient number, since it is larger than the sum of its proper divisors (1).

401155320032123 is an equidigital number, since it uses as much as digits as its factorization.

401155320032123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 401155320032123 its reverse (321230023551104), we get a palindrome (722385343583227).

The spelling of 401155320032123 in words is "four hundred one trillion, one hundred fifty-five billion, three hundred twenty million, thirty-two thousand, one hundred twenty-three".