10231030031221 has 4 divisors (see below), whose sum is σ = 10231501898592. Its totient is φ = 10230558163852.

The previous prime is 10231030031177. The next prime is 10231030031263. The reversal of 10231030031221 is 12213003013201.

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 10231030031221 - 2³¹ = 10228882547573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10231030031821) 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, 235901161 + ... + 235944526.

It is an arithmetic number, because the mean of its divisors is an integer number (2557875474648).

Almost surely, 2^{10231030031221} is an apocalyptic number.

It is an amenable number.

10231030031221 is a deficient number, since it is larger than the sum of its proper divisors (471867371).

10231030031221 is an equidigital number, since it uses as much as digits as its factorization.

10231030031221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471867370.

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

Adding to 10231030031221 its reverse (12213003013201), we get a palindrome (22444033044422).

The spelling of 10231030031221 in words is "ten trillion, two hundred thirty-one billion, thirty million, thirty-one thousand, two hundred twenty-one".