10021231442443 has 32 divisors (see below), whose sum is σ = 11408078447360. Its totient is φ = 8740747791360.

The previous prime is 10021231442437. The next prime is 10021231442489. The reversal of 10021231442443 is 34424413212001.

It is a happy number.

It is not a de Polignac number, because 10021231442443 - 2²¹ = 10021229345291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10021231442423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156271 + ... + 4479607.

It is an arithmetic number, because the mean of its divisors is an integer number (356502451480).

Almost surely, 2^{10021231442443} is an apocalyptic number.

10021231442443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10021231442443 is a deficient number, since it is larger than the sum of its proper divisors (1386847004917).

10021231442443 is a wasteful number, since it uses less digits than its factorization.

10021231442443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4323527.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 10021231442443 its reverse (34424413212001), we get a palindrome (44445644654444).

The spelling of 10021231442443 in words is "ten trillion, twenty-one billion, two hundred thirty-one million, four hundred forty-two thousand, four hundred forty-three".