1011330021123 has 32 divisors (see below), whose sum is σ = 1518766284800. Its totient is φ = 665012462400.

The previous prime is 1011330021113. The next prime is 1011330021157. The reversal of 1011330021123 is 3211200331101.

1011330021123 is a `hidden beast` number, since 101 + 1 + 330 + 0 + 211 + 23 = 666.

It is not a de Polignac number, because 1011330021123 - 2¹⁸ = 1011329758979 is a prime.

It is a super-2 number, since 2×1011330021123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011330021096 and 1011330021105.

It is not an unprimeable number, because it can be changed into a prime (1011330021113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1874583 + ... + 2353023.

It is an arithmetic number, because the mean of its divisors is an integer number (47461446400).

Almost surely, 2^{1011330021123} is an apocalyptic number.

1011330021123 is a deficient number, since it is larger than the sum of its proper divisors (507436263677).

1011330021123 is an equidigital number, since it uses as much as digits as its factorization.

1011330021123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479520 (or 479514 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1011330021123 its reverse (3211200331101), we get a palindrome (4222530352224).

The spelling of 1011330021123 in words is "one trillion, eleven billion, three hundred thirty million, twenty-one thousand, one hundred twenty-three".