1123311103215 has 32 divisors (see below), whose sum is σ = 2054492246016. Its totient is φ = 513404232960.

The previous prime is 1123311103151. The next prime is 1123311103217. The reversal of 1123311103215 is 5123011133211.

It is not a de Polignac number, because 1123311103215 - 2⁶ = 1123311103151 is a prime.

It is a super-2 number, since 2×1123311103215² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123311103217) 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, 643566 + ... + 1631195.

It is an arithmetic number, because the mean of its divisors is an integer number (64202882688).

Almost surely, 2^{1123311103215} is an apocalyptic number.

1123311103215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1123311103215 is a deficient number, since it is larger than the sum of its proper divisors (931181142801).

1123311103215 is a wasteful number, since it uses less digits than its factorization.

1123311103215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279479.

The product of its (nonzero) digits is 540, while the sum is 24.

Adding to 1123311103215 its reverse (5123011133211), we get a palindrome (6246322236426).

The spelling of 1123311103215 in words is "one trillion, one hundred twenty-three billion, three hundred eleven million, one hundred three thousand, two hundred fifteen".