1123041400123 has 2 divisors, whose sum is σ = 1123041400124. Its totient is φ = 1123041400122.

The previous prime is 1123041400111. The next prime is 1123041400133. The reversal of 1123041400123 is 3210041403211.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123041400123 is a prime.

It is a super-2 number, since 2×1123041400123² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1123041400094 and 1123041400103.

It is not a weakly prime, because it can be changed into another prime (1123041400133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561520700061 + 561520700062.

It is an arithmetic number, because the mean of its divisors is an integer number (561520700062).

Almost surely, 2^{1123041400123} is an apocalyptic number.

1123041400123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123041400123 is an equidigital number, since it uses as much as digits as its factorization.

1123041400123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1123041400123 its reverse (3210041403211), we get a palindrome (4333082803334).

The spelling of 1123041400123 in words is "one trillion, one hundred twenty-three billion, forty-one million, four hundred thousand, one hundred twenty-three".