1321341031143 has 48 divisors (see below), whose sum is σ = 2361135394560. Its totient is φ = 715312400976.

The previous prime is 1321341031139. The next prime is 1321341031169. The reversal of 1321341031143 is 3411301431231.

1321341031143 is a `hidden beast` number, since 1 + 3 + 2 + 1 + 341 + 0 + 311 + 4 + 3 = 666.

It is not a de Polignac number, because 1321341031143 - 2² = 1321341031139 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321341031943) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9614905 + ... + 9751362.

It is an arithmetic number, because the mean of its divisors is an integer number (49190320720).

Almost surely, 2^{1321341031143} is an apocalyptic number.

1321341031143 is a deficient number, since it is larger than the sum of its proper divisors (1039794363417).

1321341031143 is a wasteful number, since it uses less digits than its factorization.

1321341031143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19366321 (or 19366296 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 1321341031143 its reverse (3411301431231), we get a palindrome (4732642462374).

The spelling of 1321341031143 in words is "one trillion, three hundred twenty-one billion, three hundred forty-one million, thirty-one thousand, one hundred forty-three".