1210312012 has 24 divisors (see below), whose sum is σ = 2606826656. Its totient is φ = 478804608.

The previous prime is 1210311967. The next prime is 1210312021. The reversal of 1210312012 is 2102130121.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 1210311983 and 1210312001.

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 7 ways as a sum of consecutive naturals, for example, 1662153 + ... + 1662880.

Almost surely, 2^1210312012 is an apocalyptic number.

It is an amenable number.

1210312012 is an abundant number, since it is smaller than the sum of its proper divisors (1396514644).

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

1210312012 is a wasteful number, since it uses less digits than its factorization.

1210312012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3325057 (or 3325055 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1210312012 is about 34789.5388299414. The cubic root of 1210312012 is about 1065.6938213703.

Adding to 1210312012 its reverse (2102130121), we get a palindrome (3312442133).

The spelling of 1210312012 in words is "one billion, two hundred ten million, three hundred twelve thousand, twelve".