1011020223233 has 6 divisors (see below), whose sum is σ = 1028446602354. Its totient is φ = 993884283824.

The previous prime is 1011020223223. The next prime is 1011020223247. The reversal of 1011020223233 is 3323220201101.

It can be written as a sum of positive squares in only one way, i.e., 729560264449 + 281459958784 = 854143^2 + 530528^2 .

It is not a de Polignac number, because 1011020223233 - 2²⁰ = 1011019174657 is a prime.

It is a super-2 number, since 2×1011020223233² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011020223223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 145216316 + ... + 145223277.

It is an arithmetic number, because the mean of its divisors is an integer number (171407767059).

Almost surely, 2^{1011020223233} is an apocalyptic number.

It is an amenable number.

1011020223233 is a deficient number, since it is larger than the sum of its proper divisors (17426379121).

1011020223233 is an frugal number, since it uses more digits than its factorization.

1011020223233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290439711 (or 290439652 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1011020223233 its reverse (3323220201101), we get a palindrome (4334240424334).

The spelling of 1011020223233 in words is "one trillion, eleven billion, twenty million, two hundred twenty-three thousand, two hundred thirty-three".