1031111311023 has 6 divisors (see below), whose sum is σ = 1489383004824. Its totient is φ = 687407540676.

The previous prime is 1031111311019. The next prime is 1031111311031. The reversal of 1031111311023 is 3201131111301.

1031111311023 is a `hidden beast` number, since 10 + 311 + 11 + 311 + 0 + 23 = 666.

It is not a de Polignac number, because 1031111311023 - 2² = 1031111311019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1031111310987 and 1031111311005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031111311033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57283961715 + ... + 57283961732.

It is an arithmetic number, because the mean of its divisors is an integer number (248230500804).

Almost surely, 2^{1031111311023} is an apocalyptic number.

1031111311023 is a deficient number, since it is larger than the sum of its proper divisors (458271693801).

1031111311023 is a wasteful number, since it uses less digits than its factorization.

1031111311023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114567923453 (or 114567923450 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 1031111311023 its reverse (3201131111301), we get a palindrome (4232242422324).

The spelling of 1031111311023 in words is "one trillion, thirty-one billion, one hundred eleven million, three hundred eleven thousand, twenty-three".