1201021343 has 2 divisors, whose sum is σ = 1201021344. Its totient is φ = 1201021342.

The previous prime is 1201021333. The next prime is 1201021351. The reversal of 1201021343 is 3431201021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1201021343 - 2¹⁶ = 1200955807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201021333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600510671 + 600510672.

It is an arithmetic number, because the mean of its divisors is an integer number (600510672).

Almost surely, 2^1201021343 is an apocalyptic number.

1201021343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201021343 is an equidigital number, since it uses as much as digits as its factorization.

1201021343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1201021343 is about 34655.7548323507. The cubic root of 1201021343 is about 1062.9599667157.

Adding to 1201021343 its reverse (3431201021), we get a palindrome (4632222364).

The spelling of 1201021343 in words is "one billion, two hundred one million, twenty-one thousand, three hundred forty-three".