4023020042381 has 2 divisors, whose sum is σ = 4023020042382. Its totient is φ = 4023020042380.

The previous prime is 4023020042359. The next prime is 4023020042383. The reversal of 4023020042381 is 1832400203204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3276610439881 + 746409602500 = 1810141^2 + 863950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4023020042381 is a prime.

It is a super-3 number, since 3×4023020042381³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 4023020042383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4023020042383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2011510021190 + 2011510021191.

It is an arithmetic number, because the mean of its divisors is an integer number (2011510021191).

Almost surely, 2^{4023020042381} is an apocalyptic number.

It is an amenable number.

4023020042381 is a deficient number, since it is larger than the sum of its proper divisors (1).

4023020042381 is an equidigital number, since it uses as much as digits as its factorization.

4023020042381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 4023020042381 its reverse (1832400203204), we get a palindrome (5855420245585).

The spelling of 4023020042381 in words is "four trillion, twenty-three billion, twenty million, forty-two thousand, three hundred eighty-one".