1004123362121 has 4 divisors (see below), whose sum is σ = 1095407304144. Its totient is φ = 912839420100.

The previous prime is 1004123362049. The next prime is 1004123362127. The reversal of 1004123362121 is 1212633214001.

It is a happy number.

1004123362121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1004123362121 - 2³⁴ = 986943492937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1004123362127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45641970995 + ... + 45641971016.

It is an arithmetic number, because the mean of its divisors is an integer number (273851826036).

Almost surely, 2^{1004123362121} is an apocalyptic number.

1004123362121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1004123362121 is a deficient number, since it is larger than the sum of its proper divisors (91283942023).

1004123362121 is an equidigital number, since it uses as much as digits as its factorization.

1004123362121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91283942022.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 1004123362121 its reverse (1212633214001), we get a palindrome (2216756576122).

The spelling of 1004123362121 in words is "one trillion, four billion, one hundred twenty-three million, three hundred sixty-two thousand, one hundred twenty-one".