1020133331 has 8 divisors (see below), whose sum is σ = 1234447200. Its totient is φ = 822964608.

The previous prime is 1020133291. The next prime is 1020133343. The reversal of 1020133331 is 1333310201.

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

It is a cyclic number.

It is not a de Polignac number, because 1020133331 - 2⁶ = 1020133267 is a prime.

It is a super-2 number, since 2×1020133331² = 2081344026034311122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (1020133831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4286156 + ... + 4286393.

It is an arithmetic number, because the mean of its divisors is an integer number (154305900).

Almost surely, 2^1020133331 is an apocalyptic number.

1020133331 is a deficient number, since it is larger than the sum of its proper divisors (214313869).

1020133331 is an equidigital number, since it uses as much as digits as its factorization.

1020133331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8572573.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1020133331 is about 31939.5261549072. The cubic root of 1020133331 is about 1006.6665684375. Note that the first 3 decimals are identical.

Adding to 1020133331 its reverse (1333310201), we get a palindrome (2353443532).

The spelling of 1020133331 in words is "one billion, twenty million, one hundred thirty-three thousand, three hundred thirty-one".