1023133212 has 54 divisors (see below), whose sum is σ = 2603714568. Its totient is φ = 338756784.

The previous prime is 1023133211. The next prime is 1023133259. The reversal of 1023133212 is 2123313201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023133211) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1153033 + ... + 1153919.

Almost surely, 2^1023133212 is an apocalyptic number.

1023133212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1023133212 is an abundant number, since it is smaller than the sum of its proper divisors (1580581356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1023133212 is a wasteful number, since it uses less digits than its factorization.

1023133212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255 (or 1071 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1023133212 is about 31986.4535702225. The cubic root of 1023133212 is about 1007.6523626420.

Adding to 1023133212 its reverse (2123313201), we get a palindrome (3146446413).

The spelling of 1023133212 in words is "one billion, twenty-three million, one hundred thirty-three thousand, two hundred twelve".