1031131003212 has 96 divisors (see below), whose sum is σ = 2686631270400. Its totient is φ = 341998203456.

The previous prime is 1031131003211. The next prime is 1031131003303. The reversal of 1031131003212 is 2123001311301.

1031131003212 is a `hidden beast` number, since 1 + 0 + 31 + 1 + 310 + 0 + 321 + 2 = 666.

It is a super-2 number, since 2×1031131003212² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1031131003211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53866339 + ... + 53885477.

It is an arithmetic number, because the mean of its divisors is an integer number (27985742400).

Almost surely, 2^{1031131003212} is an apocalyptic number.

1031131003212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1031131003212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1343315635200).

1031131003212 is an abundant number, since it is smaller than the sum of its proper divisors (1655500267188).

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

1031131003212 is a wasteful number, since it uses less digits than its factorization.

1031131003212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21612 (or 21604 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1031131003212 its reverse (2123001311301), we get a palindrome (3154132314513).

The spelling of 1031131003212 in words is "one trillion, thirty-one billion, one hundred thirty-one million, three thousand, two hundred twelve".