1231231124 has 12 divisors (see below), whose sum is σ = 2248335264. Its totient is φ = 588849624.

The previous prime is 1231231121. The next prime is 1231231151. The reversal of 1231231124 is 4211321321.

It is a junction number, because it is equal to n+sod(n) for n = 1231231096 and 1231231105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231231121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6691382 + ... + 6691565.

It is an arithmetic number, because the mean of its divisors is an integer number (187361272).

Almost surely, 2^1231231124 is an apocalyptic number.

It is an amenable number.

1231231124 is a deficient number, since it is larger than the sum of its proper divisors (1017104140).

1231231124 is a wasteful number, since it uses less digits than its factorization.

1231231124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13382974 (or 13382972 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 1231231124 is about 35088.9031461515. The cubic root of 1231231124 is about 1071.7986239488.

Adding to 1231231124 its reverse (4211321321), we get a palindrome (5442552445).

The spelling of 1231231124 in words is "one billion, two hundred thirty-one million, two hundred thirty-one thousand, one hundred twenty-four".