1231190352 has 120 divisors (see below), whose sum is σ = 3987959040. Its totient is φ = 347293440.

The previous prime is 1231190351. The next prime is 1231190383. The reversal of 1231190352 is 2530911321.

1231190352 is a `hidden beast` number, since 123 + 1 + 190 + 352 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231190351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71902 + ... + 87362.

It is an arithmetic number, because the mean of its divisors is an integer number (33232992).

Almost surely, 2^1231190352 is an apocalyptic number.

1231190352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1231190352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1993979520).

1231190352 is an abundant number, since it is smaller than the sum of its proper divisors (2756768688).

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

1231190352 is a wasteful number, since it uses less digits than its factorization.

1231190352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15561 (or 15552 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 1231190352 is about 35088.3221599438. The cubic root of 1231190352 is about 1071.7867930112.

The spelling of 1231190352 in words is "one billion, two hundred thirty-one million, one hundred ninety thousand, three hundred fifty-two".