1301020201 has 4 divisors (see below), whose sum is σ = 1401098692. Its totient is φ = 1200941712.

The previous prime is 1301020199. The next prime is 1301020211. The reversal of 1301020201 is 1020201031.

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

It can be written as a sum of positive squares in 2 ways, for example, as 163712025 + 1137308176 = 12795^2 + 33724^2 .

It is a cyclic number.

It is not a de Polignac number, because 1301020201 - 2¹ = 1301020199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301020211) 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, 50039226 + ... + 50039251.

It is an arithmetic number, because the mean of its divisors is an integer number (350274673).

Almost surely, 2^1301020201 is an apocalyptic number.

It is an amenable number.

1301020201 is a deficient number, since it is larger than the sum of its proper divisors (100078491).

1301020201 is a wasteful number, since it uses less digits than its factorization.

1301020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100078490.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1301020201 is about 36069.6576224394. The cubic root of 1301020201 is about 1091.6783058746.

Adding to 1301020201 its reverse (1020201031), we get a palindrome (2321221232).

The spelling of 1301020201 in words is "one billion, three hundred one million, twenty thousand, two hundred one".