1232355500 has 48 divisors (see below), whose sum is σ = 2849805504. Its totient is φ = 463942400.

The previous prime is 1232355497. The next prime is 1232355503. The reversal of 1232355500 is 55532321.

It is an interprime number because it is at equal distance from previous prime (1232355497) and next prime (1232355503).

It is a self number, because there is not a number n which added to its sum of digits gives 1232355500.

It is not an unprimeable number, because it can be changed into a prime (1232355503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63992 + ... + 80991.

It is an arithmetic number, because the mean of its divisors is an integer number (59370948).

Almost surely, 2^1232355500 is an apocalyptic number.

1232355500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232355500 is an abundant number, since it is smaller than the sum of its proper divisors (1617450004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1232355500 is a wasteful number, since it uses less digits than its factorization.

1232355500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145019 (or 145007 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 1232355500 is about 35104.9213074179. The cubic root of 1232355500 is about 1072.1247847519.

Adding to 1232355500 its reverse (55532321), we get a palindrome (1287887821).

The spelling of 1232355500 in words is "one billion, two hundred thirty-two million, three hundred fifty-five thousand, five hundred".