10123221131 has 4 divisors (see below), whose sum is σ = 10196050200. Its totient is φ = 10050392064.

The previous prime is 10123221091. The next prime is 10123221167. The reversal of 10123221131 is 13112232101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10123221131 - 2¹⁴ = 10123204747 is a prime.

It is a super-2 number, since 2×10123221131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10123221191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36414326 + ... + 36414603.

It is an arithmetic number, because the mean of its divisors is an integer number (2549012550).

Almost surely, 2^10123221131 is an apocalyptic number.

10123221131 is a deficient number, since it is larger than the sum of its proper divisors (72829069).

10123221131 is an equidigital number, since it uses as much as digits as its factorization.

10123221131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72829068.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 10123221131 its reverse (13112232101), we get a palindrome (23235453232).

The spelling of 10123221131 in words is "ten billion, one hundred twenty-three million, two hundred twenty-one thousand, one hundred thirty-one".