400112108093 has 2 divisors, whose sum is σ = 400112108094. Its totient is φ = 400112108092.

The previous prime is 400112108089. The next prime is 400112108173. The reversal of 400112108093 is 390801211004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 396973083364 + 3139024729 = 630058^2 + 56027^2 .

It is a cyclic number.

It is not a de Polignac number, because 400112108093 - 2² = 400112108089 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400112101093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200056054046 + 200056054047.

It is an arithmetic number, because the mean of its divisors is an integer number (200056054047).

Almost surely, 2^400112108093 is an apocalyptic number.

It is an amenable number.

400112108093 is a deficient number, since it is larger than the sum of its proper divisors (1).

400112108093 is an equidigital number, since it uses as much as digits as its factorization.

400112108093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

Adding to 400112108093 its reverse (390801211004), we get a palindrome (790913319097).

The spelling of 400112108093 in words is "four hundred billion, one hundred twelve million, one hundred eight thousand, ninety-three".