11023031212 has 24 divisors (see below), whose sum is σ = 19959965312. Its totient is φ = 5321030400.

The previous prime is 11023031197. The next prime is 11023031219. The reversal of 11023031212 is 21213032011.

It is not an unprimeable number, because it can be changed into a prime (11023031219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53373 + ... + 157780.

Almost surely, 2^11023031212 is an apocalyptic number.

It is an amenable number.

11023031212 is a deficient number, since it is larger than the sum of its proper divisors (8936934100).

11023031212 is a wasteful number, since it uses less digits than its factorization.

11023031212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211609 (or 211607 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11023031212 its reverse (21213032011), we get a palindrome (32236063223).

The spelling of 11023031212 in words is "eleven billion, twenty-three million, thirty-one thousand, two hundred twelve".