1023120312 has 32 divisors (see below), whose sum is σ = 2561619600. Its totient is φ = 340530944.

The previous prime is 1023120289. The next prime is 1023120313. The reversal of 1023120312 is 2130213201.

It is a junction number, because it is equal to n+sod(n) for n = 1023120291 and 1023120300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023120313) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 15237 + ... + 47732.

Almost surely, 2^1023120312 is an apocalyptic number.

1023120312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1023120312 is an abundant number, since it is smaller than the sum of its proper divisors (1538499288).

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

1023120312 is a wasteful number, since it uses less digits than its factorization.

1023120312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63655 (or 63651 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1023120312 is about 31986.2519217241. The cubic root of 1023120312 is about 1007.6481276867.

Adding to 1023120312 its reverse (2130213201), we get a palindrome (3153333513).

The spelling of 1023120312 in words is "one billion, twenty-three million, one hundred twenty thousand, three hundred twelve".