1231924426 has 8 divisors (see below), whose sum is σ = 1887203520. Its totient is φ = 602856588.

The previous prime is 1231924411. The next prime is 1231924483. The reversal of 1231924426 is 6244291321.

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 = 1231924391 and 1231924400.

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, 6552696 + ... + 6552883.

It is an arithmetic number, because the mean of its divisors is an integer number (235900440).

Almost surely, 2^1231924426 is an apocalyptic number.

1231924426 is a deficient number, since it is larger than the sum of its proper divisors (655279094).

1231924426 is a wasteful number, since it uses less digits than its factorization.

1231924426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13105628.

The product of its digits is 20736, while the sum is 34.

The square root of 1231924426 is about 35098.7809759826. The cubic root of 1231924426 is about 1071.9997615699. Note that the first 3 decimals are identical.

The spelling of 1231924426 in words is "one billion, two hundred thirty-one million, nine hundred twenty-four thousand, four hundred twenty-six".