1031012311312 has 10 divisors (see below), whose sum is σ = 1997586353198. Its totient is φ = 515506155648.

The previous prime is 1031012311291. The next prime is 1031012311319. The reversal of 1031012311312 is 2131132101301.

It can be written as a sum of positive squares in only one way, i.e., 988544993536 + 42467317776 = 994256^2 + 206076^2 .

It is a super-2 number, since 2×1031012311312² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1031012311312.

It is not an unprimeable number, because it can be changed into a prime (1031012311319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32219134713 + ... + 32219134744.

Almost surely, 2^{1031012311312} is an apocalyptic number.

It is an amenable number.

1031012311312 is a deficient number, since it is larger than the sum of its proper divisors (966574041886).

1031012311312 is an equidigital number, since it uses as much as digits as its factorization.

1031012311312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64438269465 (or 64438269459 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1031012311312 its reverse (2131132101301), we get a palindrome (3162144412613).

The spelling of 1031012311312 in words is "one trillion, thirty-one billion, twelve million, three hundred eleven thousand, three hundred twelve".