1210312312 has 64 divisors (see below), whose sum is σ = 2650320000. Its totient is φ = 512311680.

The previous prime is 1210312307. The next prime is 1210312339. The reversal of 1210312312 is 2132130121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92514 + ... + 104782.

It is an arithmetic number, because the mean of its divisors is an integer number (41411250).

Almost surely, 2^1210312312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1210312312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1325160000).

1210312312 is an abundant number, since it is smaller than the sum of its proper divisors (1440007688).

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

1210312312 is a wasteful number, since it uses less digits than its factorization.

1210312312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12364 (or 12360 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1210312312 is about 34789.5431415821. The cubic root of 1210312312 is about 1065.6939094214.

Adding to 1210312312 its reverse (2132130121), we get a palindrome (3342442433).

The spelling of 1210312312 in words is "one billion, two hundred ten million, three hundred twelve thousand, three hundred twelve".