10204123387 has 2 divisors, whose sum is σ = 10204123388. Its totient is φ = 10204123386.

The previous prime is 10204123343. The next prime is 10204123459. The reversal of 10204123387 is 78332140201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10204123387 - 2¹⁹ = 10203599099 is a prime.

It is not a weakly prime, because it can be changed into another prime (10204123087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5102061693 + 5102061694.

It is an arithmetic number, because the mean of its divisors is an integer number (5102061694).

Almost surely, 2^10204123387 is an apocalyptic number.

10204123387 is a deficient number, since it is larger than the sum of its proper divisors (1).

10204123387 is an equidigital number, since it uses as much as digits as its factorization.

10204123387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

Adding to 10204123387 its reverse (78332140201), we get a palindrome (88536263588).

The spelling of 10204123387 in words is "ten billion, two hundred four million, one hundred twenty-three thousand, three hundred eighty-seven".