1301122905 has 32 divisors (see below), whose sum is σ = 2153789568. Its totient is φ = 670272000.

The previous prime is 1301122891. The next prime is 1301122909. The reversal of 1301122905 is 5092211031.

It is not a de Polignac number, because 1301122905 - 2⁶ = 1301122841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1301122909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51642 + ... + 72588.

It is an arithmetic number, because the mean of its divisors is an integer number (67305924).

Almost surely, 2^1301122905 is an apocalyptic number.

1301122905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1301122905 is a deficient number, since it is larger than the sum of its proper divisors (852666663).

1301122905 is a wasteful number, since it uses less digits than its factorization.

1301122905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21097.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 1301122905 is about 36071.0812840425. The cubic root of 1301122905 is about 1091.7070312238.

Adding to 1301122905 its reverse (5092211031), we get a palindrome (6393333936).

The spelling of 1301122905 in words is "one billion, three hundred one million, one hundred twenty-two thousand, nine hundred five".