4021421233031 has 2 divisors, whose sum is σ = 4021421233032. Its totient is φ = 4021421233030.

The previous prime is 4021421232979. The next prime is 4021421233057. The reversal of 4021421233031 is 1303321241204.

4021421233031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (4021421233057) can be obtained adding 4021421233031 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4021421233031 - 2³⁸ = 3746543326087 is a prime.

It is a super-4 number, since 4×4021421233031⁴ (a number of 52 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4021421233931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010710616515 + 2010710616516.

It is an arithmetic number, because the mean of its divisors is an integer number (2010710616516).

Almost surely, 2^{4021421233031} is an apocalyptic number.

4021421233031 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021421233031 is an equidigital number, since it uses as much as digits as its factorization.

4021421233031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 4021421233031 its reverse (1303321241204), we get a palindrome (5324742474235).

The spelling of 4021421233031 in words is "four trillion, twenty-one billion, four hundred twenty-one million, two hundred thirty-three thousand, thirty-one".