4312103522421 has 16 divisors (see below), whose sum is σ = 5827819919040. Its totient is φ = 2835669473280.

The previous prime is 4312103522401. The next prime is 4312103522473. The reversal of 4312103522421 is 1242253012134.

It is a happy number.

It is not a de Polignac number, because 4312103522421 - 2⁶ = 4312103522357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4312103522401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13348726 + ... + 13667943.

It is an arithmetic number, because the mean of its divisors is an integer number (364238744940).

Almost surely, 2^{4312103522421} is an apocalyptic number.

It is an amenable number.

4312103522421 is a deficient number, since it is larger than the sum of its proper divisors (1515716396619).

4312103522421 is a wasteful number, since it uses less digits than its factorization.

4312103522421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27017396.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 4312103522421 its reverse (1242253012134), we get a palindrome (5554356534555).

The spelling of 4312103522421 in words is "four trillion, three hundred twelve billion, one hundred three million, five hundred twenty-two thousand, four hundred twenty-one".