40421123231104 has 64 divisors (see below), whose sum is σ = 100396621036800. Its totient is φ = 15748489566720.

The previous prime is 40421123231089. The next prime is 40421123231107. The reversal of 40421123231104 is 40113232112404.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40421123231107) 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 in 7 ways as a sum of consecutive naturals, for example, 2050574724 + ... + 2050594435.

It is an arithmetic number, because the mean of its divisors is an integer number (1568697203700).

Almost surely, 2^{40421123231104} is an apocalyptic number.

40421123231104 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40421123231104 is an abundant number, since it is smaller than the sum of its proper divisors (59975497805696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40421123231104 is a wasteful number, since it uses less digits than its factorization.

40421123231104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4101169191 (or 4101169179 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 40421123231104 its reverse (40113232112404), we get a palindrome (80534355343508).

The spelling of 40421123231104 in words is "forty trillion, four hundred twenty-one billion, one hundred twenty-three million, two hundred thirty-one thousand, one hundred four".