1302031023 has 4 divisors (see below), whose sum is σ = 1736041368. Its totient is φ = 868020680.

The previous prime is 1302031007. The next prime is 1302031079. The reversal of 1302031023 is 3201302031.

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 1302031023 - 2⁴ = 1302031007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1302030993 and 1302031011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1309031023) 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, 217005168 + ... + 217005173.

It is an arithmetic number, because the mean of its divisors is an integer number (434010342).

Almost surely, 2^1302031023 is an apocalyptic number.

1302031023 is a deficient number, since it is larger than the sum of its proper divisors (434010345).

1302031023 is an equidigital number, since it uses as much as digits as its factorization.

1302031023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434010344.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1302031023 is about 36083.6669838308. Note that the first 3 decimals coincide. The cubic root of 1302031023 is about 1091.9609575932.

Adding to 1302031023 its reverse (3201302031), we get a palindrome (4503333054).

The spelling of 1302031023 in words is "one billion, three hundred two million, thirty-one thousand, twenty-three".