10031221323 has 24 divisors (see below), whose sum is σ = 15403187280. Its totient is φ = 6272769600.

The previous prime is 10031221313. The next prime is 10031221337. The reversal of 10031221323 is 32312213001.

10031221323 is a `hidden beast` number, since 10 + 0 + 312 + 21 + 323 = 666.

It is not a de Polignac number, because 10031221323 - 2⁹ = 10031220811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10031221296 and 10031221305.

It is not an unprimeable number, because it can be changed into a prime (10031221303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 273136 + ... + 307677.

It is an arithmetic number, because the mean of its divisors is an integer number (641799470).

Almost surely, 2^10031221323 is an apocalyptic number.

10031221323 is a deficient number, since it is larger than the sum of its proper divisors (5371965957).

10031221323 is a wasteful number, since it uses less digits than its factorization.

10031221323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580939 (or 580936 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 10031221323 its reverse (32312213001), we get a palindrome (42343434324).

The spelling of 10031221323 in words is "ten billion, thirty-one million, two hundred twenty-one thousand, three hundred twenty-three".