20130230023381 has 2 divisors, whose sum is σ = 20130230023382. Its totient is φ = 20130230023380.

The previous prime is 20130230023369. The next prime is 20130230023427. The reversal of 20130230023381 is 18332003203102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19741404196900 + 388825826481 = 4443130^2 + 623559^2 .

It is a cyclic number.

It is not a de Polignac number, because 20130230023381 - 2¹¹ = 20130230021333 is a prime.

It is a super-2 number, since 2×20130230023381² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20130230023081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065115011690 + 10065115011691.

It is an arithmetic number, because the mean of its divisors is an integer number (10065115011691).

Almost surely, 2^{20130230023381} is an apocalyptic number.

It is an amenable number.

20130230023381 is a deficient number, since it is larger than the sum of its proper divisors (1).

20130230023381 is an equidigital number, since it uses as much as digits as its factorization.

20130230023381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 20130230023381 its reverse (18332003203102), we get a palindrome (38462233226483).

The spelling of 20130230023381 in words is "twenty trillion, one hundred thirty billion, two hundred thirty million, twenty-three thousand, three hundred eighty-one".