1023311212 has 24 divisors (see below), whose sum is σ = 2232679680. Its totient is φ = 398692560.

The previous prime is 1023311207. The next prime is 1023311249. The reversal of 1023311212 is 2121133201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1660912 + ... + 1661527.

It is an arithmetic number, because the mean of its divisors is an integer number (93028320).

Almost surely, 2^1023311212 is an apocalyptic number.

It is an amenable number.

1023311212 is an abundant number, since it is smaller than the sum of its proper divisors (1209368468).

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

1023311212 is a wasteful number, since it uses less digits than its factorization.

1023311212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3322461 (or 3322459 counting only the distinct ones).

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

The square root of 1023311212 is about 31989.2358770884. The cubic root of 1023311212 is about 1007.7107948246.

Adding to 1023311212 its reverse (2121133201), we get a palindrome (3144444413).

The spelling of 1023311212 in words is "one billion, twenty-three million, three hundred eleven thousand, two hundred twelve".