1142433021 has 8 divisors (see below), whose sum is σ = 1526030944. Its totient is φ = 760228560.

The previous prime is 1142433001. The next prime is 1142433029. The reversal of 1142433021 is 1203342411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1142433021 - 2⁶ = 1142432957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142433029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346450 + ... + 349731.

It is an arithmetic number, because the mean of its divisors is an integer number (190753868).

Almost surely, 2^1142433021 is an apocalyptic number.

It is an amenable number.

1142433021 is a deficient number, since it is larger than the sum of its proper divisors (383597923).

1142433021 is an equidigital number, since it uses as much as digits as its factorization.

1142433021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696731.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1142433021 is about 33799.8967601974. The cubic root of 1142433021 is about 1045.3865685196.

Adding to 1142433021 its reverse (1203342411), we get a palindrome (2345775432).

The spelling of 1142433021 in words is "one billion, one hundred forty-two million, four hundred thirty-three thousand, twenty-one".