1031101121111 has 2 divisors, whose sum is σ = 1031101121112. Its totient is φ = 1031101121110.

The previous prime is 1031101121101. The next prime is 1031101121143. The reversal of 1031101121111 is 1111211011301.

It is a weak prime.

It is an emirp because it is prime and its reverse (1111211011301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1031101121111 - 2⁶ = 1031101121047 is a prime.

It is a super-2 number, since 2×1031101121111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031101121101) 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 as a sum of consecutive naturals, namely, 515550560555 + 515550560556.

It is an arithmetic number, because the mean of its divisors is an integer number (515550560556).

Almost surely, 2^{1031101121111} is an apocalyptic number.

1031101121111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031101121111 is an equidigital number, since it uses as much as digits as its factorization.

1031101121111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 14.

Adding to 1031101121111 its reverse (1111211011301), we get a palindrome (2142312132412).

It can be divided in two parts, 103110 and 1121111, that added together give a palindrome (1224221).

The spelling of 1031101121111 in words is "one trillion, thirty-one billion, one hundred one million, one hundred twenty-one thousand, one hundred eleven".