1300001923 has 4 divisors (see below), whose sum is σ = 1418183928. Its totient is φ = 1181819920.

The previous prime is 1300001909. The next prime is 1300001933. The reversal of 1300001923 is 3291000031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3291000031 = 11 ⋅299181821.

It is a cyclic number.

It is not a de Polignac number, because 1300001923 - 2⁵ = 1300001891 is a prime.

It is a super-3 number, since 3×1300001923³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1300001923.

It is not an unprimeable number, because it can be changed into a prime (1300001903) 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, 59090986 + ... + 59091007.

It is an arithmetic number, because the mean of its divisors is an integer number (354545982).

Almost surely, 2^1300001923 is an apocalyptic number.

1300001923 is a deficient number, since it is larger than the sum of its proper divisors (118182005).

1300001923 is a wasteful number, since it uses less digits than its factorization.

1300001923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118182004.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 1300001923 is about 36055.5394218420. The cubic root of 1300001923 is about 1091.3934212015.

Adding to 1300001923 its reverse (3291000031), we get a palindrome (4591001954).

The spelling of 1300001923 in words is "one billion, three hundred million, one thousand, nine hundred twenty-three".