4021123413321 has 72 divisors (see below), whose sum is σ = 6876869991264. Its totient is φ = 2257071505920.

The previous prime is 4021123413311. The next prime is 4021123413323. The reversal of 4021123413321 is 1233143211204.

4021123413321 is a `hidden beast` number, since 4 + 0 + 211 + 2 + 3 + 413 + 32 + 1 = 666.

It is not a de Polignac number, because 4021123413321 - 2¹⁰ = 4021123412297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4021123413323) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10237326 + ... + 10622856.

It is an arithmetic number, because the mean of its divisors is an integer number (95512083212).

Almost surely, 2^{4021123413321} is an apocalyptic number.

It is an amenable number.

4021123413321 is a deficient number, since it is larger than the sum of its proper divisors (2855746577943).

4021123413321 is a wasteful number, since it uses less digits than its factorization.

4021123413321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385971 (or 385961 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 4021123413321 its reverse (1233143211204), we get a palindrome (5254266624525).

The spelling of 4021123413321 in words is "four trillion, twenty-one billion, one hundred twenty-three million, four hundred thirteen thousand, three hundred twenty-one".