1213248012 has 24 divisors (see below), whose sum is σ = 2831530800. Its totient is φ = 404327616.

The previous prime is 1213248007. The next prime is 1213248041. The reversal of 1213248012 is 2108423121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69814 + ... + 85442.

It is an arithmetic number, because the mean of its divisors is an integer number (117980450).

Almost surely, 2^1213248012 is an apocalyptic number.

1213248012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1213248012 is an abundant number, since it is smaller than the sum of its proper divisors (1618282788).

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

1213248012 is a wasteful number, since it uses less digits than its factorization.

1213248012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22105 (or 22103 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 1213248012 is about 34831.7098632841. The cubic root of 1213248012 is about 1066.5548529062.

The spelling of 1213248012 in words is "one billion, two hundred thirteen million, two hundred forty-eight thousand, twelve".