1231343124 has 96 divisors (see below), whose sum is σ = 3189352320. Its totient is φ = 366643200.

The previous prime is 1231343107. The next prime is 1231343147. The reversal of 1231343124 is 4213431321.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1231343094 and 1231343103.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3301002 + ... + 3301374.

It is an arithmetic number, because the mean of its divisors is an integer number (33222420).

Almost surely, 2^1231343124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1231343124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1594676160).

1231343124 is an abundant number, since it is smaller than the sum of its proper divisors (1958009196).

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

1231343124 is a wasteful number, since it uses less digits than its factorization.

1231343124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761 (or 759 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

The square root of 1231343124 is about 35090.4990560123. The cubic root of 1231343124 is about 1071.8311219918.

Adding to 1231343124 its reverse (4213431321), we get a palindrome (5444774445).

The spelling of 1231343124 in words is "one billion, two hundred thirty-one million, three hundred forty-three thousand, one hundred twenty-four".