1111011123321 has 32 divisors (see below), whose sum is σ = 1795682390400. Its totient is φ = 673299253440.

The previous prime is 1111011123319. The next prime is 1111011123323. The reversal of 1111011123321 is 1233211101111.

It is an interprime number because it is at equal distance from previous prime (1111011123319) and next prime (1111011123323).

It is not a de Polignac number, because 1111011123321 - 2¹ = 1111011123319 is a prime.

It is a super-2 number, since 2×1111011123321² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1111011123294 and 1111011123303.

It is not an unprimeable number, because it can be changed into a prime (1111011123323) 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, 5214535 + ... + 5423411.

It is an arithmetic number, because the mean of its divisors is an integer number (56115074700).

Almost surely, 2^{1111011123321} is an apocalyptic number.

1111011123321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1111011123321 is a deficient number, since it is larger than the sum of its proper divisors (684671267079).

1111011123321 is a wasteful number, since it uses less digits than its factorization.

1111011123321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226806 (or 226800 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 1111011123321 its reverse (1233211101111), we get a palindrome (2344222224432).

The spelling of 1111011123321 in words is "one trillion, one hundred eleven billion, eleven million, one hundred twenty-three thousand, three hundred twenty-one".