4021421332131 has 48 divisors (see below), whose sum is σ = 6750868363200. Its totient is φ = 2259110165760.

The previous prime is 4021421332127. The next prime is 4021421332139. The reversal of 4021421332131 is 1312331241204.

4021421332131 is a `hidden beast` number, since 4 + 0 + 21 + 421 + 3 + 3 + 213 + 1 = 666.

It is not a de Polignac number, because 4021421332131 - 2² = 4021421332127 is a prime.

It is a super-2 number, since 2×4021421332131² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4021421332095 and 4021421332104.

It is not an unprimeable number, because it can be changed into a prime (4021421332139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7157845 + ... + 7699193.

It is an arithmetic number, because the mean of its divisors is an integer number (140643090900).

Almost surely, 2^{4021421332131} is an apocalyptic number.

4021421332131 is a deficient number, since it is larger than the sum of its proper divisors (2729447031069).

4021421332131 is a wasteful number, since it uses less digits than its factorization.

4021421332131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543356 (or 543353 counting only the distinct ones).

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

Adding to 4021421332131 its reverse (1312331241204), we get a palindrome (5333752573335).

The spelling of 4021421332131 in words is "four trillion, twenty-one billion, four hundred twenty-one million, three hundred thirty-two thousand, one hundred thirty-one".