1023001213312 has 32 divisors (see below), whose sum is σ = 2194780250880. Its totient is φ = 472154405376.

The previous prime is 1023001213249. The next prime is 1023001213319. The reversal of 1023001213312 is 2133121003201.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 1023001213312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023001213319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307390528 + ... + 307393855.

It is an arithmetic number, because the mean of its divisors is an integer number (68586882840).

Almost surely, 2^{1023001213312} is an apocalyptic number.

It is an amenable number.

1023001213312 is an abundant number, since it is smaller than the sum of its proper divisors (1171779037568).

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

1023001213312 is an equidigital number, since it uses as much as digits as its factorization.

1023001213312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614784410 (or 614784398 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1023001213312 its reverse (2133121003201), we get a palindrome (3156122216513).

The spelling of 1023001213312 in words is "one trillion, twenty-three billion, one million, two hundred thirteen thousand, three hundred twelve".