1021242133 has 8 divisors (see below), whose sum is σ = 1039920768. Its totient is φ = 1002732864.

The previous prime is 1021242127. The next prime is 1021242149. The reversal of 1021242133 is 3312421201.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021242133 is a prime.

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 1021242133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021245133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30141 + ... + 54322.

It is an arithmetic number, because the mean of its divisors is an integer number (129990096).

Almost surely, 2^1021242133 is an apocalyptic number.

It is an amenable number.

1021242133 is a deficient number, since it is larger than the sum of its proper divisors (18678635).

1021242133 is a wasteful number, since it uses less digits than its factorization.

1021242133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84683.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1021242133 is about 31956.8792750481. The cubic root of 1021242133 is about 1007.0311579510.

Adding to 1021242133 its reverse (3312421201), we get a palindrome (4333663334).

The spelling of 1021242133 in words is "one billion, twenty-one million, two hundred forty-two thousand, one hundred thirty-three".