1201004321143 has 16 divisors (see below), whose sum is σ = 1329823632384. Its totient is φ = 1075459872960.

The previous prime is 1201004321129. The next prime is 1201004321173. The reversal of 1201004321143 is 3411234001021.

It is not a de Polignac number, because 1201004321143 - 2⁹ = 1201004320631 is a prime.

It is a super-2 number, since 2×1201004321143² (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 (1201004321173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14918746 + ... + 14999032.

It is an arithmetic number, because the mean of its divisors is an integer number (83113977024).

Almost surely, 2^{1201004321143} is an apocalyptic number.

1201004321143 is a deficient number, since it is larger than the sum of its proper divisors (128819311241).

1201004321143 is a wasteful number, since it uses less digits than its factorization.

1201004321143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100662.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1201004321143 its reverse (3411234001021), we get a palindrome (4612238322164).

The spelling of 1201004321143 in words is "one trillion, two hundred one billion, four million, three hundred twenty-one thousand, one hundred forty-three".