404212120123144 has 32 divisors (see below), whose sum is σ = 759819148696440. Its totient is φ = 201593890713600.

The previous prime is 404212120123039. The next prime is 404212120123151. The reversal of 404212120123144 is 441321021212404.

It can be written as a sum of positive squares in 4 ways, for example, as 201479231258244 + 202732888864900 = 14194338^2 + 14238430^2 .

It is a super-3 number, since 3×404212120123144³ (a number of 45 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2245884 + ... + 28521364.

Almost surely, 2^{404212120123144} is an apocalyptic number.

It is an amenable number.

404212120123144 is a deficient number, since it is larger than the sum of its proper divisors (355607028573296).

404212120123144 is a wasteful number, since it uses less digits than its factorization.

404212120123144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26280361 (or 26280357 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 404212120123144 its reverse (441321021212404), we get a palindrome (845533141335548).

The spelling of 404212120123144 in words is "four hundred four trillion, two hundred twelve billion, one hundred twenty million, one hundred twenty-three thousand, one hundred forty-four".