1231924234 has 8 divisors (see below), whose sum is σ = 1911606660. Its totient is φ = 594722016.

The previous prime is 1231924217. The next prime is 1231924247. The reversal of 1231924234 is 4324291321.

It can be written as a sum of positive squares in 2 ways, for example, as 1098591025 + 133333209 = 33145^2 + 11547^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1231924196 and 1231924205.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10619979 + ... + 10620094.

Almost surely, 2^1231924234 is an apocalyptic number.

1231924234 is a deficient number, since it is larger than the sum of its proper divisors (679682426).

1231924234 is a wasteful number, since it uses less digits than its factorization.

1231924234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21240104.

The product of its digits is 10368, while the sum is 31.

The square root of 1231924234 is about 35098.7782408448. The cubic root of 1231924234 is about 1071.9997058782. Note that the first 3 decimals are identical.

The spelling of 1231924234 in words is "one billion, two hundred thirty-one million, nine hundred twenty-four thousand, two hundred thirty-four".