12152243425 has 24 divisors (see below), whose sum is σ = 17228754432. Its totient is φ = 8329440000.

The previous prime is 12152243419. The next prime is 12152243431. The reversal of 12152243425 is 52434225121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12152243419) and next prime (12152243431).

It is not a de Polignac number, because 12152243425 - 2¹³ = 12152235233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 440025 + ... + 466825.

It is an arithmetic number, because the mean of its divisors is an integer number (717864768).

Almost surely, 2^12152243425 is an apocalyptic number.

It is an amenable number.

12152243425 is a deficient number, since it is larger than the sum of its proper divisors (5076511007).

12152243425 is a wasteful number, since it uses less digits than its factorization.

12152243425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29409 (or 29404 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

Adding to 12152243425 its reverse (52434225121), we get a palindrome (64586468546).

The spelling of 12152243425 in words is "twelve billion, one hundred fifty-two million, two hundred forty-three thousand, four hundred twenty-five".