1201121401343 has 4 divisors (see below), whose sum is σ = 1271775601440. Its totient is φ = 1130467201248.

The previous prime is 1201121401331. The next prime is 1201121401373. The reversal of 1201121401343 is 3431041211021.

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

It is a cyclic number.

It is not a de Polignac number, because 1201121401343 - 2¹⁶ = 1201121335807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201121401303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35327100023 + ... + 35327100056.

It is an arithmetic number, because the mean of its divisors is an integer number (317943900360).

Almost surely, 2^{1201121401343} is an apocalyptic number.

1201121401343 is a deficient number, since it is larger than the sum of its proper divisors (70654200097).

1201121401343 is an equidigital number, since it uses as much as digits as its factorization.

1201121401343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70654200096.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1201121401343 its reverse (3431041211021), we get a palindrome (4632162612364).

The spelling of 1201121401343 in words is "one trillion, two hundred one billion, one hundred twenty-one million, four hundred one thousand, three hundred forty-three".