1223000311061 has 2 divisors, whose sum is σ = 1223000311062. Its totient is φ = 1223000311060.

The previous prime is 1223000310943. The next prime is 1223000311069. The reversal of 1223000311061 is 1601130003221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1194441339025 + 28558972036 = 1092905^2 + 168994^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223000311061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223000311069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611500155530 + 611500155531.

It is an arithmetic number, because the mean of its divisors is an integer number (611500155531).

Almost surely, 2^{1223000311061} is an apocalyptic number.

It is an amenable number.

1223000311061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223000311061 is an equidigital number, since it uses as much as digits as its factorization.

1223000311061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1223000311061 its reverse (1601130003221), we get a palindrome (2824130314282).

The spelling of 1223000311061 in words is "one trillion, two hundred twenty-three billion, three hundred eleven thousand, sixty-one".