1123012211077 has 2 divisors, whose sum is σ = 1123012211078. Its totient is φ = 1123012211076.

The previous prime is 1123012211071. The next prime is 1123012211137. The reversal of 1123012211077 is 7701122103211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1121737292641 + 1274918436 = 1059121^2 + 35706^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123012211077 is a prime.

It is a super-2 number, since 2×1123012211077² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123012211071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561506105538 + 561506105539.

It is an arithmetic number, because the mean of its divisors is an integer number (561506105539).

Almost surely, 2^{1123012211077} is an apocalyptic number.

It is an amenable number.

1123012211077 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123012211077 is an equidigital number, since it uses as much as digits as its factorization.

1123012211077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176, while the sum is 28.

Adding to 1123012211077 its reverse (7701122103211), we get a palindrome (8824134314288).

The spelling of 1123012211077 in words is "one trillion, one hundred twenty-three billion, twelve million, two hundred eleven thousand, seventy-seven".