1023221211331 has 4 divisors (see below), whose sum is σ = 1116241321464. Its totient is φ = 930201101200.

The previous prime is 1023221211293. The next prime is 1023221211349. The reversal of 1023221211331 is 1331121223201.

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 1023221211331 - 2³³ = 1014631276739 is a prime.

It is a super-2 number, since 2×1023221211331² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1023221311331) 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, 46510055050 + ... + 46510055071.

It is an arithmetic number, because the mean of its divisors is an integer number (279060330366).

Almost surely, 2^{1023221211331} is an apocalyptic number.

1023221211331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1023221211331 is a deficient number, since it is larger than the sum of its proper divisors (93020110133).

1023221211331 is an equidigital number, since it uses as much as digits as its factorization.

1023221211331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93020110132.

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

Adding to 1023221211331 its reverse (1331121223201), we get a palindrome (2354342434532).

The spelling of 1023221211331 in words is "one trillion, twenty-three billion, two hundred twenty-one million, two hundred eleven thousand, three hundred thirty-one".