1442021012531 has 16 divisors (see below), whose sum is σ = 1665830613888. Its totient is φ = 1233680937600.

The previous prime is 1442021012501. The next prime is 1442021012539. The reversal of 1442021012531 is 1352101202441.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1442021012531 - 2²⁶ = 1441953903667 is a prime.

It is a super-2 number, since 2×1442021012531² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1442021012531.

It is not an unprimeable number, because it can be changed into a prime (1442021012539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1329836 + ... + 2156966.

It is an arithmetic number, because the mean of its divisors is an integer number (104114413368).

Almost surely, 2^{1442021012531} is an apocalyptic number.

1442021012531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1442021012531 is a deficient number, since it is larger than the sum of its proper divisors (223809601357).

1442021012531 is a wasteful number, since it uses less digits than its factorization.

1442021012531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836482.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 1442021012531 its reverse (1352101202441), we get a palindrome (2794122214972).

The spelling of 1442021012531 in words is "one trillion, four hundred forty-two billion, twenty-one million, twelve thousand, five hundred thirty-one".