1012231241321 has 4 divisors (see below), whose sum is σ = 1012734590544. Its totient is φ = 1011727892100.

The previous prime is 1012231241317. The next prime is 1012231241323. The reversal of 1012231241321 is 1231421322101.

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 1012231241321 - 2² = 1012231241317 is a prime.

It is a super-2 number, since 2×1012231241321² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012231241323) 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, 251671595 + ... + 251675616.

It is an arithmetic number, because the mean of its divisors is an integer number (253183647636).

Almost surely, 2^{1012231241321} is an apocalyptic number.

It is an amenable number.

1012231241321 is a deficient number, since it is larger than the sum of its proper divisors (503349223).

1012231241321 is an equidigital number, since it uses as much as digits as its factorization.

1012231241321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503349222.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1012231241321 its reverse (1231421322101), we get a palindrome (2243652563422).

The spelling of 1012231241321 in words is "one trillion, twelve billion, two hundred thirty-one million, two hundred forty-one thousand, three hundred twenty-one".