1142023421021 has 16 divisors (see below), whose sum is σ = 1364288822400. Its totient is φ = 955002152160.

The previous prime is 1142023420969. The next prime is 1142023421027. The reversal of 1142023421021 is 1201243202411.

It is not a de Polignac number, because 1142023421021 - 2¹⁴ = 1142023404637 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142023421027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40589771 + ... + 40617896.

It is an arithmetic number, because the mean of its divisors is an integer number (85268051400).

Almost surely, 2^{1142023421021} is an apocalyptic number.

It is an amenable number.

1142023421021 is a deficient number, since it is larger than the sum of its proper divisors (222265401379).

1142023421021 is an frugal number, since it uses more digits than its factorization.

1142023421021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81207729 (or 81207715 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1142023421021 its reverse (1201243202411), we get a palindrome (2343266623432).

The spelling of 1142023421021 in words is "one trillion, one hundred forty-two billion, twenty-three million, four hundred twenty-one thousand, twenty-one".