1023211312 has 20 divisors (see below), whose sum is σ = 1982972536. Its totient is φ = 511476480.

The previous prime is 1023211307. The next prime is 1023211339. The reversal of 1023211312 is 2131123201.

It is a super-2 number, since 2×1023211312² = 2093922778009522688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106783 + ... + 115969.

Almost surely, 2^1023211312 is an apocalyptic number.

It is an amenable number.

1023211312 is a deficient number, since it is larger than the sum of its proper divisors (959761224).

1023211312 is an equidigital number, since it uses as much as digits as its factorization.

1023211312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16156 (or 16150 counting only the distinct ones).

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

The square root of 1023211312 is about 31987.6743762344. The cubic root of 1023211312 is about 1007.6780014171.

Adding to 1023211312 its reverse (2131123201), we get a palindrome (3154334513).

The spelling of 1023211312 in words is "one billion, twenty-three million, two hundred eleven thousand, three hundred twelve".