1020442233 has 4 divisors (see below), whose sum is σ = 1360589648. Its totient is φ = 680294820.

The previous prime is 1020442223. The next prime is 1020442273. The reversal of 1020442233 is 3322440201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1020442233 - 2¹⁰ = 1020441209 is a prime.

It is a super-4 number, since 4×1020442233⁴ (a number of 37 digits) contains 4444 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1020442223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170073703 + ... + 170073708.

It is an arithmetic number, because the mean of its divisors is an integer number (340147412).

Almost surely, 2^1020442233 is an apocalyptic number.

It is an amenable number.

1020442233 is a deficient number, since it is larger than the sum of its proper divisors (340147415).

1020442233 is an equidigital number, since it uses as much as digits as its factorization.

1020442233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340147414.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1020442233 is about 31944.3615212450. The cubic root of 1020442233 is about 1006.7681662468.

Adding to 1020442233 its reverse (3322440201), we get a palindrome (4342882434).

The spelling of 1020442233 in words is "one billion, twenty million, four hundred forty-two thousand, two hundred thirty-three".