1230321132 has 36 divisors (see below), whose sum is σ = 3112127200. Its totient is φ = 409823712.

The previous prime is 1230321121. The next prime is 1230321133. The reversal of 1230321132 is 2311230321.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1230321132² = 3027380175691522848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1230321133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44733 + ... + 66795.

Almost surely, 2^1230321132 is an apocalyptic number.

1230321132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1230321132 is an abundant number, since it is smaller than the sum of its proper divisors (1881806068).

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

1230321132 is a wasteful number, since it uses less digits than its factorization.

1230321132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23622 (or 23617 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1230321132 is about 35075.9338008270. The cubic root of 1230321132 is about 1071.5345065846.

Adding to 1230321132 its reverse (2311230321), we get a palindrome (3541551453).

The spelling of 1230321132 in words is "one billion, two hundred thirty million, three hundred twenty-one thousand, one hundred thirty-two".