1231348160 has 224 divisors, whose sum is σ = 3502517760. Its totient is φ = 403550208.

The previous prime is 1231348109. The next prime is 1231348187. The reversal of 1231348160 is 618431321.

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×1231348160² = 3032436582270771200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6878951 + ... + 6879129.

It is an arithmetic number, because the mean of its divisors is an integer number (15636240).

Almost surely, 2^1231348160 is an apocalyptic number.

1231348160 is a gapful number since it is divisible by the number (10) 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 1231348160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1751258880).

1231348160 is an abundant number, since it is smaller than the sum of its proper divisors (2271169600).

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

1231348160 is a wasteful number, since it uses less digits than its factorization.

1231348160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1231348160 is about 35090.5708132541. The cubic root of 1231348160 is about 1071.8325831968.

Adding to 1231348160 its reverse (618431321), we get a palindrome (1849779481).

The spelling of 1231348160 in words is "one billion, two hundred thirty-one million, three hundred forty-eight thousand, one hundred sixty".