400200112120415 has 4 divisors (see below), whose sum is σ = 480240134544504. Its totient is φ = 320160089696328.

The previous prime is 400200112120411. The next prime is 400200112120421. The reversal of 400200112120415 is 514021211002004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 400200112120415 - 2² = 400200112120411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400200112120411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40020011212037 + ... + 40020011212046.

It is an arithmetic number, because the mean of its divisors is an integer number (120060033636126).

Almost surely, 2^{400200112120415} is an apocalyptic number.

400200112120415 is a deficient number, since it is larger than the sum of its proper divisors (80040022424089).

400200112120415 is an equidigital number, since it uses as much as digits as its factorization.

400200112120415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80040022424088.

The product of its (nonzero) digits is 640, while the sum is 23.

Adding to 400200112120415 its reverse (514021211002004), we get a palindrome (914221323122419).

The spelling of 400200112120415 in words is "four hundred trillion, two hundred billion, one hundred twelve million, one hundred twenty thousand, four hundred fifteen".