10123311203221 has 4 divisors (see below), whose sum is σ = 10274405400352. Its totient is φ = 9972217006092.

The previous prime is 10123311203183. The next prime is 10123311203249. The reversal of 10123311203221 is 12230211332101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10123311203221 - 2¹³ = 10123311195029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10123311203192 and 10123311203201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10123314203221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75547098465 + ... + 75547098598.

It is an arithmetic number, because the mean of its divisors is an integer number (2568601350088).

Almost surely, 2^{10123311203221} is an apocalyptic number.

It is an amenable number.

10123311203221 is a deficient number, since it is larger than the sum of its proper divisors (151094197131).

10123311203221 is an equidigital number, since it uses as much as digits as its factorization.

10123311203221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151094197130.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 10123311203221 its reverse (12230211332101), we get a palindrome (22353522535322).

The spelling of 10123311203221 in words is "ten trillion, one hundred twenty-three billion, three hundred eleven million, two hundred three thousand, two hundred twenty-one".