1321312105032 has 16 divisors (see below), whose sum is σ = 3303280262640. Its totient is φ = 440437368336.

The previous prime is 1321312105031. The next prime is 1321312105067. The reversal of 1321312105032 is 2305012131231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 55054671043 = 1321312105032 / (1 + 3 + 2 + 1 + 3 + 1 + 2 + 1 + 0 + 5 + 0 + 3 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 1321312104993 and 1321312105011.

It is not an unprimeable number, because it can be changed into a prime (1321312105031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27527335498 + ... + 27527335545.

It is an arithmetic number, because the mean of its divisors is an integer number (206455016415).

Almost surely, 2^{1321312105032} is an apocalyptic number.

1321312105032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1321312105032 is an abundant number, since it is smaller than the sum of its proper divisors (1981968157608).

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

1321312105032 is a wasteful number, since it uses less digits than its factorization.

1321312105032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55054671052 (or 55054671048 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 1321312105032 its reverse (2305012131231), we get a palindrome (3626324236263).

The spelling of 1321312105032 in words is "one trillion, three hundred twenty-one billion, three hundred twelve million, one hundred five thousand, thirty-two".