1321405110143 has 8 divisors (see below), whose sum is σ = 1327000758480. Its totient is φ = 1315818438400.

The previous prime is 1321405110131. The next prime is 1321405110191. The reversal of 1321405110143 is 3410115041231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1321405110143 - 2¹⁶ = 1321405044607 is a prime.

It is a super-2 number, since 2×1321405110143² (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 (1321405110343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1949033 + ... + 2538018.

It is an arithmetic number, because the mean of its divisors is an integer number (165875094810).

Almost surely, 2^{1321405110143} is an apocalyptic number.

1321405110143 is a deficient number, since it is larger than the sum of its proper divisors (5595648337).

1321405110143 is an equidigital number, since it uses as much as digits as its factorization.

1321405110143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4488297.

The product of its (nonzero) digits is 1440, while the sum is 26.

The spelling of 1321405110143 in words is "one trillion, three hundred twenty-one billion, four hundred five million, one hundred ten thousand, one hundred forty-three".