1031013221211 has 48 divisors (see below), whose sum is σ = 1515742644000. Its totient is φ = 675171915264.

The previous prime is 1031013221209. The next prime is 1031013221213. The reversal of 1031013221211 is 1121223101301.

1031013221211 is a `hidden beast` number, since 1 + 0 + 310 + 132 + 212 + 11 = 666.

It is an interprime number because it is at equal distance from previous prime (1031013221209) and next prime (1031013221213).

It is not a de Polignac number, because 1031013221211 - 2¹ = 1031013221209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1031013221213) 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 47 ways as a sum of consecutive naturals, for example, 576306105 + ... + 576307893.

It is an arithmetic number, because the mean of its divisors is an integer number (31577971750).

Almost surely, 2^{1031013221211} is an apocalyptic number.

1031013221211 is a deficient number, since it is larger than the sum of its proper divisors (484729422789).

1031013221211 is a wasteful number, since it uses less digits than its factorization.

1031013221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4028 (or 4025 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1031013221211 its reverse (1121223101301), we get a palindrome (2152236322512).

The spelling of 1031013221211 in words is "one trillion, thirty-one billion, thirteen million, two hundred twenty-one thousand, two hundred eleven".