1023133311 has 48 divisors (see below), whose sum is σ = 1634592960. Its totient is φ = 614423040.

The previous prime is 1023133291. The next prime is 1023133313. The reversal of 1023133311 is 1133313201.

It is a happy number.

It is not a de Polignac number, because 1023133311 - 2⁷ = 1023133183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023133313) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 244045 + ... + 248201.

It is an arithmetic number, because the mean of its divisors is an integer number (34054020).

Almost surely, 2^1023133311 is an apocalyptic number.

1023133311 is a deficient number, since it is larger than the sum of its proper divisors (611459649).

1023133311 is a wasteful number, since it uses less digits than its factorization.

1023133311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4256 (or 4253 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1023133311 is about 31986.4551177526. The cubic root of 1023133311 is about 1007.6523951427.

Adding to 1023133311 its reverse (1133313201), we get a palindrome (2156446512).

The spelling of 1023133311 in words is "one billion, twenty-three million, one hundred thirty-three thousand, three hundred eleven".