1020213330233 has 4 divisors (see below), whose sum is σ = 1022636640228. Its totient is φ = 1017790020240.

The previous prime is 1020213330221. The next prime is 1020213330239. The reversal of 1020213330233 is 3320333120201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 204293152144 + 815920178089 = 451988^2 + 903283^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020213330233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020213330199 and 1020213330208.

It is not an unprimeable number, because it can be changed into a prime (1020213330239) 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, 1211654366 + ... + 1211655207.

It is an arithmetic number, because the mean of its divisors is an integer number (255659160057).

Almost surely, 2^{1020213330233} is an apocalyptic number.

It is an amenable number.

1020213330233 is a deficient number, since it is larger than the sum of its proper divisors (2423309995).

1020213330233 is an equidigital number, since it uses as much as digits as its factorization.

1020213330233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2423309994.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 1020213330233 its reverse (3320333120201), we get a palindrome (4340546450434).

The spelling of 1020213330233 in words is "one trillion, twenty billion, two hundred thirteen million, three hundred thirty thousand, two hundred thirty-three".