1301122011 has 8 divisors (see below), whose sum is σ = 1982662144. Its totient is φ = 743498280.

The previous prime is 1301122007. The next prime is 1301122063. The reversal of 1301122011 is 1102211031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1301122011 - 2² = 1301122007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301122001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30979075 + ... + 30979116.

It is an arithmetic number, because the mean of its divisors is an integer number (247832768).

Almost surely, 2^1301122011 is an apocalyptic number.

1301122011 is a deficient number, since it is larger than the sum of its proper divisors (681540133).

1301122011 is an equidigital number, since it uses as much as digits as its factorization.

1301122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61958201.

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

The square root of 1301122011 is about 36071.0688918418. The cubic root of 1301122011 is about 1091.7067811869.

Adding to 1301122011 its reverse (1102211031), we get a palindrome (2403333042).

The spelling of 1301122011 in words is "one billion, three hundred one million, one hundred twenty-two thousand, eleven".