1213003032312 has 32 divisors (see below), whose sum is σ = 3034845752400. Its totient is φ = 404022587904.

The previous prime is 1213003032289. The next prime is 1213003032341. The reversal of 1213003032312 is 2132303003121.

It is a congruent number.

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, 19452987 + ... + 19515242.

Almost surely, 2^{1213003032312} is an apocalyptic number.

1213003032312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1213003032312 is an abundant number, since it is smaller than the sum of its proper divisors (1821842720088).

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

1213003032312 is a wasteful number, since it uses less digits than its factorization.

1213003032312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38969535 (or 38969531 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1213003032312 its reverse (2132303003121), we get a palindrome (3345306035433).

The spelling of 1213003032312 in words is "one trillion, two hundred thirteen billion, three million, thirty-two thousand, three hundred twelve".