1020133242 has 24 divisors (see below), whose sum is σ = 2211726816. Its totient is φ = 339823176.

The previous prime is 1020133217. The next prime is 1020133243. The reversal of 1020133242 is 2423310201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1020133243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11293 + ... + 46559.

It is an arithmetic number, because the mean of its divisors is an integer number (92155284).

Almost surely, 2^1020133242 is an apocalyptic number.

1020133242 is an abundant number, since it is smaller than the sum of its proper divisors (1191593574).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020133242 is a wasteful number, since it uses less digits than its factorization.

1020133242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36882 (or 36879 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1020133242 is about 31939.5247616492. The cubic root of 1020133242 is about 1006.6665391625. Note that the first 3 decimals are identical.

Adding to 1020133242 its reverse (2423310201), we get a palindrome (3443443443).

The spelling of 1020133242 in words is "one billion, twenty million, one hundred thirty-three thousand, two hundred forty-two".