1031210023312 has 80 divisors (see below), whose sum is σ = 2422353745152. Its totient is φ = 415151493120.

The previous prime is 1031210023279. The next prime is 1031210023339. The reversal of 1031210023312 is 2133200121301.

It is a super-3 number, since 3×1031210023312³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 1031210023312.

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, 472213 + ... + 1511755.

Almost surely, 2^{1031210023312} 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 1031210023312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1211176872576).

1031210023312 is an abundant number, since it is smaller than the sum of its proper divisors (1391143721840).

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

1031210023312 is a wasteful number, since it uses less digits than its factorization.

1031210023312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040096 (or 1040090 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1031210023312 its reverse (2133200121301), we get a palindrome (3164410144613).

The spelling of 1031210023312 in words is "one trillion, thirty-one billion, two hundred ten million, twenty-three thousand, three hundred twelve".