1331400204223 has 4 divisors (see below), whose sum is σ = 1389287169648. Its totient is φ = 1273513238800.

The previous prime is 1331400204217. The next prime is 1331400204227. The reversal of 1331400204223 is 3224020041331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1331400204223 is a prime.

It is a super-2 number, since 2×1331400204223² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331400204227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28943482678 + ... + 28943482723.

It is an arithmetic number, because the mean of its divisors is an integer number (347321792412).

Almost surely, 2^{1331400204223} is an apocalyptic number.

1331400204223 is a deficient number, since it is larger than the sum of its proper divisors (57886965425).

1331400204223 is an equidigital number, since it uses as much as digits as its factorization.

1331400204223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57886965424.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 1331400204223 its reverse (3224020041331), we get a palindrome (4555420245554).

The spelling of 1331400204223 in words is "one trillion, three hundred thirty-one billion, four hundred million, two hundred four thousand, two hundred twenty-three".