1232125551 has 24 divisors (see below), whose sum is σ = 1817056800. Its totient is φ = 804350400.

The previous prime is 1232125513. The next prime is 1232125553. The reversal of 1232125551 is 1555212321.

It is not a de Polignac number, because 1232125551 - 2⁶ = 1232125487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232125553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88741 + ... + 101681.

It is an arithmetic number, because the mean of its divisors is an integer number (75710700).

Almost surely, 2^1232125551 is an apocalyptic number.

1232125551 is a deficient number, since it is larger than the sum of its proper divisors (584931249).

1232125551 is a wasteful number, since it uses less digits than its factorization.

1232125551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13167 (or 13164 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 1232125551 is about 35101.6459870474. The cubic root of 1232125551 is about 1072.0580969178.

Adding to 1232125551 its reverse (1555212321), we get a palindrome (2787337872).

The spelling of 1232125551 in words is "one billion, two hundred thirty-two million, one hundred twenty-five thousand, five hundred fifty-one".