1213444312032 has 24 divisors (see below), whose sum is σ = 3185291319336. Its totient is φ = 404481437312.

The previous prime is 1213444312021. The next prime is 1213444312049. The reversal of 1213444312032 is 2302134443121.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6320022363 + ... + 6320022554.

It is an arithmetic number, because the mean of its divisors is an integer number (132720471639).

Almost surely, 2^{1213444312032} is an apocalyptic number.

1213444312032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1213444312032 is an abundant number, since it is smaller than the sum of its proper divisors (1971847007304).

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

1213444312032 is a wasteful number, since it uses less digits than its factorization.

1213444312032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12640044930 (or 12640044922 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 1213444312032 its reverse (2302134443121), we get a palindrome (3515578755153).

The spelling of 1213444312032 in words is "one trillion, two hundred thirteen billion, four hundred forty-four million, three hundred twelve thousand, thirty-two".