1301123101 has 4 divisors (see below), whose sum is σ = 1377659772. Its totient is φ = 1224586432.

The previous prime is 1301123071. The next prime is 1301123119. The reversal of 1301123101 is 1013211031.

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 1164583876 + 136539225 = 34126^2 + 11685^2 .

It is not a de Polignac number, because 1301123101 - 2¹¹ = 1301121053 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 (1301123171) 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, 38268310 + ... + 38268343.

It is an arithmetic number, because the mean of its divisors is an integer number (344414943).

Almost surely, 2^1301123101 is an apocalyptic number.

It is an amenable number.

1301123101 is a deficient number, since it is larger than the sum of its proper divisors (76536671).

1301123101 is an equidigital number, since it uses as much as digits as its factorization.

1301123101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76536670.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1301123101 is about 36071.0840009002. The cubic root of 1301123101 is about 1091.7070860417.

Adding to 1301123101 its reverse (1013211031), we get a palindrome (2314334132).

The spelling of 1301123101 in words is "one billion, three hundred one million, one hundred twenty-three thousand, one hundred one".