1204404402123 has 48 divisors (see below), whose sum is σ = 1932387855840. Its totient is φ = 741067232256.

The previous prime is 1204404402067. The next prime is 1204404402137. The reversal of 1204404402123 is 3212044044021.

1204404402123 is a `hidden beast` number, since 1 + 2 + 0 + 4 + 4 + 0 + 440 + 212 + 3 = 666.

It is not a de Polignac number, because 1204404402123 - 2⁹ = 1204404401611 is a prime.

It is a super-3 number, since 3×1204404402123³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1204404402623) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43320915 + ... + 43348707.

It is an arithmetic number, because the mean of its divisors is an integer number (40258080330).

Almost surely, 2^{1204404402123} is an apocalyptic number.

1204404402123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1204404402123 is a deficient number, since it is larger than the sum of its proper divisors (727983453717).

1204404402123 is a wasteful number, since it uses less digits than its factorization.

1204404402123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37325 (or 37306 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 1204404402123 its reverse (3212044044021), we get a palindrome (4416448446144).

The spelling of 1204404402123 in words is "one trillion, two hundred four billion, four hundred four million, four hundred two thousand, one hundred twenty-three".