1012230243421 has 4 divisors (see below), whose sum is σ = 1014901036000. Its totient is φ = 1009559450844.

The previous prime is 1012230243397. The next prime is 1012230243433. The reversal of 1012230243421 is 1243420322101.

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 a de Polignac number, because none of the positive numbers 2^k-1012230243421 is a prime.

It is a super-2 number, since 2×1012230243421² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012230243461) 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, 1335395721 + ... + 1335396478.

It is an arithmetic number, because the mean of its divisors is an integer number (253725259000).

Almost surely, 2^{1012230243421} is an apocalyptic number.

It is an amenable number.

1012230243421 is a deficient number, since it is larger than the sum of its proper divisors (2670792579).

1012230243421 is an equidigital number, since it uses as much as digits as its factorization.

1012230243421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2670792578.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1012230243421 its reverse (1243420322101), we get a palindrome (2255650565522).

The spelling of 1012230243421 in words is "one trillion, twelve billion, two hundred thirty million, two hundred forty-three thousand, four hundred twenty-one".