1302130231123 has 4 divisors (see below), whose sum is σ = 1321565010760. Its totient is φ = 1282695451488.

The previous prime is 1302130231117. The next prime is 1302130231141. The reversal of 1302130231123 is 3211320312031.

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-1302130231123 is a prime.

It is a super-2 number, since 2×1302130231123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1302130231094 and 1302130231103.

It is not an unprimeable number, because it can be changed into a prime (1302130231223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9717389718 + ... + 9717389851.

It is an arithmetic number, because the mean of its divisors is an integer number (330391252690).

Almost surely, 2^{1302130231123} is an apocalyptic number.

1302130231123 is a deficient number, since it is larger than the sum of its proper divisors (19434779637).

1302130231123 is an equidigital number, since it uses as much as digits as its factorization.

1302130231123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19434779636.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1302130231123 its reverse (3211320312031), we get a palindrome (4513450543154).

The spelling of 1302130231123 in words is "one trillion, three hundred two billion, one hundred thirty million, two hundred thirty-one thousand, one hundred twenty-three".