10123202321 has 2 divisors, whose sum is σ = 10123202322. Its totient is φ = 10123202320.

The previous prime is 10123202317. The next prime is 10123202351. The reversal of 10123202321 is 12320232101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6226945921 + 3896256400 = 78911^2 + 62420^2 .

It is a cyclic number.

It is not a de Polignac number, because 10123202321 - 2² = 10123202317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10123202321.

It is not a weakly prime, because it can be changed into another prime (10123202351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5061601160 + 5061601161.

It is an arithmetic number, because the mean of its divisors is an integer number (5061601161).

Almost surely, 2^10123202321 is an apocalyptic number.

It is an amenable number.

10123202321 is a deficient number, since it is larger than the sum of its proper divisors (1).

10123202321 is an equidigital number, since it uses as much as digits as its factorization.

10123202321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 10123202321 its reverse (12320232101), we get a palindrome (22443434422).

The spelling of 10123202321 in words is "ten billion, one hundred twenty-three million, two hundred two thousand, three hundred twenty-one".