1301520343 has 4 divisors (see below), whose sum is σ = 1358108208. Its totient is φ = 1244932480.

The previous prime is 1301520331. The next prime is 1301520371. The reversal of 1301520343 is 3430251031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3430251031 = 149 ⋅23021819.

It is a cyclic number.

It is not a de Polignac number, because 1301520343 - 2⁹ = 1301519831 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 (1301520443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28293898 + ... + 28293943.

It is an arithmetic number, because the mean of its divisors is an integer number (339527052).

Almost surely, 2^1301520343 is an apocalyptic number.

1301520343 is a deficient number, since it is larger than the sum of its proper divisors (56587865).

1301520343 is an equidigital number, since it uses as much as digits as its factorization.

1301520343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56587864.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 1301520343 is about 36076.5899580323. The cubic root of 1301520343 is about 1091.8181766780.

Adding to 1301520343 its reverse (3430251031), we get a palindrome (4731771374).

The spelling of 1301520343 in words is "one billion, three hundred one million, five hundred twenty thousand, three hundred forty-three".