2002112320381 has 2 divisors, whose sum is σ = 2002112320382. Its totient is φ = 2002112320380.

The previous prime is 2002112320367. The next prime is 2002112320423. The reversal of 2002112320381 is 1830232112002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1888725227481 + 113387092900 = 1374309^2 + 336730^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002112320381 - 2³¹ = 1999964836733 is a prime.

It is a super-2 number, since 2×2002112320381² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2002112320981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001056160190 + 1001056160191.

It is an arithmetic number, because the mean of its divisors is an integer number (1001056160191).

Almost surely, 2^{2002112320381} is an apocalyptic number.

It is an amenable number.

2002112320381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002112320381 is an equidigital number, since it uses as much as digits as its factorization.

2002112320381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 2002112320381 its reverse (1830232112002), we get a palindrome (3832344432383).

The spelling of 2002112320381 in words is "two trillion, two billion, one hundred twelve million, three hundred twenty thousand, three hundred eighty-one".