1023212423441 has 4 divisors (see below), whose sum is σ = 1101921071412. Its totient is φ = 944503775472.

The previous prime is 1023212423413. The next prime is 1023212423473. The reversal of 1023212423441 is 1443242123201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 592482733441 + 430729690000 = 769729^2 + 656300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1023212423441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1023212423141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39354323966 + ... + 39354323991.

It is an arithmetic number, because the mean of its divisors is an integer number (275480267853).

Almost surely, 2^{1023212423441} is an apocalyptic number.

It is an amenable number.

1023212423441 is a deficient number, since it is larger than the sum of its proper divisors (78708647971).

1023212423441 is an equidigital number, since it uses as much as digits as its factorization.

1023212423441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78708647970.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 1023212423441 its reverse (1443242123201), we get a palindrome (2466454546642).

The spelling of 1023212423441 in words is "one trillion, twenty-three billion, two hundred twelve million, four hundred twenty-three thousand, four hundred forty-one".