1021233135 has 32 divisors (see below), whose sum is σ = 1783793088. Its totient is φ = 495866880.

The previous prime is 1021233133. The next prime is 1021233151. The reversal of 1021233135 is 5313321201.

It is not a de Polignac number, because 1021233135 - 2¹ = 1021233133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021233133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21636 + ... + 50105.

It is an arithmetic number, because the mean of its divisors is an integer number (55743534).

Almost surely, 2^1021233135 is an apocalyptic number.

1021233135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1021233135 is a deficient number, since it is larger than the sum of its proper divisors (762559953).

1021233135 is a wasteful number, since it uses less digits than its factorization.

1021233135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71835.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 1021233135 is about 31956.7384912791. The cubic root of 1021233135 is about 1007.0282003458.

Adding to 1021233135 its reverse (5313321201), we get a palindrome (6334554336).

The spelling of 1021233135 in words is "one billion, twenty-one million, two hundred thirty-three thousand, one hundred thirty-five".