1123204061641 has 4 divisors (see below), whose sum is σ = 1131402631572. Its totient is φ = 1115005491712.

The previous prime is 1123204061621. The next prime is 1123204061687. The reversal of 1123204061641 is 1461604023211.

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 412266726400 + 710937335241 = 642080^2 + 843171^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123204061641 - 2²⁷ = 1123069843913 is a prime.

It is a super-2 number, since 2×1123204061641² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123204061621) 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, 4099284760 + ... + 4099285033.

It is an arithmetic number, because the mean of its divisors is an integer number (282850657893).

Almost surely, 2^{1123204061641} is an apocalyptic number.

It is an amenable number.

1123204061641 is a deficient number, since it is larger than the sum of its proper divisors (8198569931).

1123204061641 is an equidigital number, since it uses as much as digits as its factorization.

1123204061641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8198569930.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 1123204061641 its reverse (1461604023211), we get a palindrome (2584808084852).

The spelling of 1123204061641 in words is "one trillion, one hundred twenty-three billion, two hundred four million, sixty-one thousand, six hundred forty-one".