1021143358 has 8 divisors (see below), whose sum is σ = 1531873728. Its totient is φ = 510518784.

The previous prime is 1021143341. The next prime is 1021143359. The reversal of 1021143358 is 8533411201.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021143359) 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 3 ways as a sum of consecutive naturals, for example, 5310 + ... + 45502.

It is an arithmetic number, because the mean of its divisors is an integer number (191484216).

Almost surely, 2^1021143358 is an apocalyptic number.

1021143358 is a deficient number, since it is larger than the sum of its proper divisors (510730370).

1021143358 is a wasteful number, since it uses less digits than its factorization.

1021143358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52898.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1021143358 is about 31955.3337957844. Note that the first 3 decimals coincide. The cubic root of 1021143358 is about 1006.9986900682.

Adding to 1021143358 its reverse (8533411201), we get a palindrome (9554554559).

The spelling of 1021143358 in words is "one billion, twenty-one million, one hundred forty-three thousand, three hundred fifty-eight".