1331430333201 has 20 divisors (see below), whose sum is σ = 1989191176500. Its totient is φ = 887502233376.

The previous prime is 1331430333199. The next prime is 1331430333223. The reversal of 1331430333201 is 1023330341331.

1331430333201 is a `hidden beast` number, since 1 + 3 + 31 + 4 + 303 + 3 + 320 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 571876250625 + 759554082576 = 756225^2 + 871524^2 .

It is not a de Polignac number, because 1331430333201 - 2¹ = 1331430333199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1331430333241) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 477246 + ... + 1700183.

It is an arithmetic number, because the mean of its divisors is an integer number (99459558825).

Almost surely, 2^{1331430333201} is an apocalyptic number.

It is an amenable number.

1331430333201 is a deficient number, since it is larger than the sum of its proper divisors (657760843299).

1331430333201 is an equidigital number, since it uses as much as digits as its factorization.

1331430333201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2184990 (or 2184981 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 1331430333201 its reverse (1023330341331), we get a palindrome (2354760674532).

The spelling of 1331430333201 in words is "one trillion, three hundred thirty-one billion, four hundred thirty million, three hundred thirty-three thousand, two hundred one".