1301200111 has 4 divisors (see below), whose sum is σ = 1377741312. Its totient is φ = 1224658912.

The previous prime is 1301200097. The next prime is 1301200139. The reversal of 1301200111 is 1110021031.

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 1301200111 - 2⁵ = 1301200079 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 (1301200141) 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, 38270575 + ... + 38270608.

It is an arithmetic number, because the mean of its divisors is an integer number (344435328).

Almost surely, 2^1301200111 is an apocalyptic number.

1301200111 is a deficient number, since it is larger than the sum of its proper divisors (76541201).

1301200111 is an equidigital number, since it uses as much as digits as its factorization.

1301200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76541200.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 1301200111 is about 36072.1514606490. The cubic root of 1301200111 is about 1091.7286240253.

Adding to 1301200111 its reverse (1110021031), we get a palindrome (2411221142).

The spelling of 1301200111 in words is "one billion, three hundred one million, two hundred thousand, one hundred eleven".