1300140123 has 4 divisors (see below), whose sum is σ = 1733520168. Its totient is φ = 866760080.

The previous prime is 1300140043. The next prime is 1300140133. The reversal of 1300140123 is 3210410031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1300140123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1300140133) 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 3 ways as a sum of consecutive naturals, for example, 216690018 + ... + 216690023.

It is an arithmetic number, because the mean of its divisors is an integer number (433380042).

Almost surely, 2^1300140123 is an apocalyptic number.

1300140123 is a deficient number, since it is larger than the sum of its proper divisors (433380045).

1300140123 is an equidigital number, since it uses as much as digits as its factorization.

1300140123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433380044.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1300140123 is about 36057.4558586709. The cubic root of 1300140123 is about 1091.4320942792.

Adding to 1300140123 its reverse (3210410031), we get a palindrome (4510550154).

The spelling of 1300140123 in words is "one billion, three hundred million, one hundred forty thousand, one hundred twenty-three".