1320231366036 has 36 divisors (see below), whose sum is σ = 3640638010464. Its totient is φ = 400070110800.

The previous prime is 1320231366023. The next prime is 1320231366037. The reversal of 1320231366036 is 6306631320231.

1320231366036 is a `hidden beast` number, since 1 + 3 + 20 + 23 + 1 + 3 + 6 + 603 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1320231366036² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320231366037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1666958400 + ... + 1666959191.

It is an arithmetic number, because the mean of its divisors is an integer number (101128833624).

Almost surely, 2^{1320231366036} is an apocalyptic number.

It is an amenable number.

1320231366036 is an abundant number, since it is smaller than the sum of its proper divisors (2320406644428).

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

1320231366036 is a wasteful number, since it uses less digits than its factorization.

1320231366036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3333917612 (or 3333917607 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 36.

Adding to 1320231366036 its reverse (6306631320231), we get a palindrome (7626862686267).

The spelling of 1320231366036 in words is "one trillion, three hundred twenty billion, two hundred thirty-one million, three hundred sixty-six thousand, thirty-six".