1123220203101 has 64 divisors (see below), whose sum is σ = 1769015116800. Its totient is φ = 701930769408.

The previous prime is 1123220203057. The next prime is 1123220203103. The reversal of 1123220203101 is 1013020223211.

1123220203101 is a `hidden beast` number, since 1 + 12 + 322 + 0 + 20 + 310 + 1 = 666.

It is not a de Polignac number, because 1123220203101 - 2¹⁴ = 1123220186717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123220203103) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 131014051 + ... + 131022623.

It is an arithmetic number, because the mean of its divisors is an integer number (27640861200).

Almost surely, 2^{1123220203101} is an apocalyptic number.

It is an amenable number.

1123220203101 is a deficient number, since it is larger than the sum of its proper divisors (645794913699).

1123220203101 is a wasteful number, since it uses less digits than its factorization.

1123220203101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9715 (or 9709 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1123220203101 its reverse (1013020223211), we get a palindrome (2136240426312).

The spelling of 1123220203101 in words is "one trillion, one hundred twenty-three billion, two hundred twenty million, two hundred three thousand, one hundred one".