401022400123 has 2 divisors, whose sum is σ = 401022400124. Its totient is φ = 401022400122.

The previous prime is 401022400069. The next prime is 401022400169. The reversal of 401022400123 is 321004220104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401022400123 - 2²⁹ = 400485529211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 401022400123.

It is not a weakly prime, because it can be changed into another prime (401022406123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200511200061 + 200511200062.

It is an arithmetic number, because the mean of its divisors is an integer number (200511200062).

Almost surely, 2^401022400123 is an apocalyptic number.

401022400123 is a deficient number, since it is larger than the sum of its proper divisors (1).

401022400123 is an equidigital number, since it uses as much as digits as its factorization.

401022400123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 401022400123 its reverse (321004220104), we get a palindrome (722026620227).

The spelling of 401022400123 in words is "four hundred one billion, twenty-two million, four hundred thousand, one hundred twenty-three".