1031130111011 has 48 divisors (see below), whose sum is σ = 1447265944320. Its totient is φ = 709425034560.

The previous prime is 1031130111001. The next prime is 1031130111013. The reversal of 1031130111011 is 1101110311301.

It is not a de Polignac number, because 1031130111011 - 2³⁸ = 756252204067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1031130111013) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 444101 + ... + 1503158.

It is an arithmetic number, because the mean of its divisors is an integer number (30151373840).

Almost surely, 2^{1031130111011} is an apocalyptic number.

1031130111011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1031130111011 is a deficient number, since it is larger than the sum of its proper divisors (416135833309).

1031130111011 is a wasteful number, since it uses less digits than its factorization.

1031130111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947336 (or 1947313 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 14.

Adding to 1031130111011 its reverse (1101110311301), we get a palindrome (2132240422312).

It can be divided in two parts, 10311301 and 11011, that multiplied together give a palindrome (113537735311).

The spelling of 1031130111011 in words is "one trillion, thirty-one billion, one hundred thirty million, one hundred eleven thousand, eleven".