1111202231123 has 4 divisors (see below), whose sum is σ = 1118561186448. Its totient is φ = 1103843275800.

The previous prime is 1111202231089. The next prime is 1111202231131. The reversal of 1111202231123 is 3211322021111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1111202231123 - 2¹² = 1111202227027 is a prime.

It is a super-2 number, since 2×1111202231123² (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 = 1111202231095 and 1111202231104.

It is not an unprimeable number, because it can be changed into a prime (1111202231173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3679477436 + ... + 3679477737.

It is an arithmetic number, because the mean of its divisors is an integer number (279640296612).

Almost surely, 2^{1111202231123} is an apocalyptic number.

1111202231123 is a deficient number, since it is larger than the sum of its proper divisors (7358955325).

1111202231123 is an equidigital number, since it uses as much as digits as its factorization.

1111202231123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7358955324.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1111202231123 its reverse (3211322021111), we get a palindrome (4322524252234).

The spelling of 1111202231123 in words is "one trillion, one hundred eleven billion, two hundred two million, two hundred thirty-one thousand, one hundred twenty-three".