10123221331 has 2 divisors, whose sum is σ = 10123221332. Its totient is φ = 10123221330.

The previous prime is 10123221323. The next prime is 10123221373. The reversal of 10123221331 is 13312232101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10123221331 - 2³ = 10123221323 is a prime.

It is a super-2 number, since 2×10123221331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10123221299 and 10123221308.

It is not a weakly prime, because it can be changed into another prime (10123221391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5061610665 + 5061610666.

It is an arithmetic number, because the mean of its divisors is an integer number (5061610666).

Almost surely, 2^10123221331 is an apocalyptic number.

10123221331 is a deficient number, since it is larger than the sum of its proper divisors (1).

10123221331 is an equidigital number, since it uses as much as digits as its factorization.

10123221331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 10123221331 its reverse (13312232101), we get a palindrome (23435453432).

The spelling of 10123221331 in words is "ten billion, one hundred twenty-three million, two hundred twenty-one thousand, three hundred thirty-one".