1231023025 has 12 divisors (see below), whose sum is σ = 1527080832. Its totient is φ = 984423440.

The previous prime is 1231023007. The next prime is 1231023067. The reversal of 1231023025 is 5203201321.

It is not a de Polignac number, because 1231023025 - 2¹³ = 1231014833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1231022993 and 1231023011.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 64764 + ... + 81586.

It is an arithmetic number, because the mean of its divisors is an integer number (127256736).

Almost surely, 2^1231023025 is an apocalyptic number.

It is an amenable number.

1231023025 is a deficient number, since it is larger than the sum of its proper divisors (296057807).

1231023025 is a wasteful number, since it uses less digits than its factorization.

1231023025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19760 (or 19755 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1231023025 is about 35085.9377101425. The cubic root of 1231023025 is about 1071.7382364812.

Adding to 1231023025 its reverse (5203201321), we get a palindrome (6434224346).

The spelling of 1231023025 in words is "one billion, two hundred thirty-one million, twenty-three thousand, twenty-five".