1311231302232 has 64 divisors (see below), whose sum is σ = 3295638005760. Its totient is φ = 434736355200.

The previous prime is 1311231302201. The next prime is 1311231302243. The reversal of 1311231302232 is 2322031321131.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63849438 + ... + 63869970.

It is an arithmetic number, because the mean of its divisors is an integer number (51494343840).

Almost surely, 2^{1311231302232} is an apocalyptic number.

1311231302232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1311231302232 is an abundant number, since it is smaller than the sum of its proper divisors (1984406703528).

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

1311231302232 is a wasteful number, since it uses less digits than its factorization.

1311231302232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34664 (or 34660 counting only the distinct ones).

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

Adding to 1311231302232 its reverse (2322031321131), we get a palindrome (3633262623363).

The spelling of 1311231302232 in words is "one trillion, three hundred eleven billion, two hundred thirty-one million, three hundred two thousand, two hundred thirty-two".