1442031111021 has 32 divisors (see below), whose sum is σ = 2029337595648. Its totient is φ = 909054812160.

The previous prime is 1442031111011. The next prime is 1442031111061. The reversal of 1442031111021 is 1201111302441.

It is a de Polignac number, because none of the positive numbers 2^k-1442031111021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442031111011) 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, 1961685 + ... + 2594661.

It is an arithmetic number, because the mean of its divisors is an integer number (63416799864).

Almost surely, 2^{1442031111021} is an apocalyptic number.

It is an amenable number.

1442031111021 is a deficient number, since it is larger than the sum of its proper divisors (587306484627).

1442031111021 is a wasteful number, since it uses less digits than its factorization.

1442031111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633381.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 1442031111021 its reverse (1201111302441), we get a palindrome (2643142413462).

The spelling of 1442031111021 in words is "one trillion, four hundred forty-two billion, thirty-one million, one hundred eleven thousand, twenty-one".