1300442123 has 4 divisors (see below), whose sum is σ = 1300579008. Its totient is φ = 1300305240.

The previous prime is 1300442119. The next prime is 1300442131. The reversal of 1300442123 is 3212440031.

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 1300442123 - 2² = 1300442119 is a prime.

It is a super-2 number, since 2×1300442123² = 3382299430545494258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1300442095 and 1300442104.

It is not an unprimeable number, because it can be changed into a prime (1300442173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53036 + ... + 73577.

It is an arithmetic number, because the mean of its divisors is an integer number (325144752).

Almost surely, 2^1300442123 is an apocalyptic number.

1300442123 is a deficient number, since it is larger than the sum of its proper divisors (136885).

1300442123 is a wasteful number, since it uses less digits than its factorization.

1300442123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136884.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1300442123 is about 36061.6433763077. The cubic root of 1300442123 is about 1091.5165946519.

Adding to 1300442123 its reverse (3212440031), we get a palindrome (4512882154).

The spelling of 1300442123 in words is "one billion, three hundred million, four hundred forty-two thousand, one hundred twenty-three".