1213013231232 has 256 divisors, whose sum is σ = 3630798397440. Its totient is φ = 355484160000.

The previous prime is 1213013231219. The next prime is 1213013231233. The reversal of 1213013231232 is 2321323103121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1213013231233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 327750982 + ... + 327754682.

It is an arithmetic number, because the mean of its divisors is an integer number (14182806240).

Almost surely, 2^{1213013231232} is an apocalyptic number.

1213013231232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213013231232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1815399198720).

1213013231232 is an abundant number, since it is smaller than the sum of its proper divisors (2417785166208).

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

1213013231232 is a wasteful number, since it uses less digits than its factorization.

1213013231232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6263 (or 6251 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1213013231232 its reverse (2321323103121), we get a palindrome (3534336334353).

It can be divided in two parts, 121301 and 3231232, that added together give a palindrome (3352533).

The spelling of 1213013231232 in words is "one trillion, two hundred thirteen billion, thirteen million, two hundred thirty-one thousand, two hundred thirty-two".