1031212011311 has 8 divisors (see below), whose sum is σ = 1067253873504. Its totient is φ = 995688737280.

The previous prime is 1031212011293. The next prime is 1031212011329. The reversal of 1031212011311 is 1131102121301.

It is an interprime number because it is at equal distance from previous prime (1031212011293) and next prime (1031212011329).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1031212011311 - 2¹⁰ = 1031212010287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1031212011311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031212011211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129642995 + ... + 129650948.

It is an arithmetic number, because the mean of its divisors is an integer number (133406734188).

Almost surely, 2^{1031212011311} is an apocalyptic number.

1031212011311 is a deficient number, since it is larger than the sum of its proper divisors (36041862193).

1031212011311 is an equidigital number, since it uses as much as digits as its factorization.

1031212011311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259294081.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 1031212011311 its reverse (1131102121301), we get a palindrome (2162314132612).

The spelling of 1031212011311 in words is "one trillion, thirty-one billion, two hundred twelve million, eleven thousand, three hundred eleven".