1123202100113 has 4 divisors (see below), whose sum is σ = 1123204429620. Its totient is φ = 1123199770608.

The previous prime is 1123202100067. The next prime is 1123202100131. The reversal of 1123202100113 is 3110012023211.

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

It can be written as a sum of positive squares in 2 ways, for example, as 213872026369 + 909330073744 = 462463^2 + 953588^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123202100113 - 2²⁰ = 1123201051537 is a prime.

It is a super-2 number, since 2×1123202100113² (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 = 1123202100091 and 1123202100100.

It is not an unprimeable number, because it can be changed into a prime (1123202100613) 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, 142370 + ... + 1505547.

It is an arithmetic number, because the mean of its divisors is an integer number (280801107405).

Almost surely, 2^{1123202100113} is an apocalyptic number.

It is an amenable number.

1123202100113 is a deficient number, since it is larger than the sum of its proper divisors (2329507).

1123202100113 is an equidigital number, since it uses as much as digits as its factorization.

1123202100113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2329506.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1123202100113 its reverse (3110012023211), we get a palindrome (4233214123324).

The spelling of 1123202100113 in words is "one trillion, one hundred twenty-three billion, two hundred two million, one hundred thousand, one hundred thirteen".