123120303011 has 2 divisors, whose sum is σ = 123120303012. Its totient is φ = 123120303010.

The previous prime is 123120302957. The next prime is 123120303041. The reversal of 123120303011 is 110303021321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123120303011 is a prime.

It is a super-2 number, since 2×123120303011² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123120303041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61560151505 + 61560151506.

It is an arithmetic number, because the mean of its divisors is an integer number (61560151506).

Almost surely, 2^123120303011 is an apocalyptic number.

123120303011 is a deficient number, since it is larger than the sum of its proper divisors (1).

123120303011 is an equidigital number, since it uses as much as digits as its factorization.

123120303011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 123120303011 its reverse (110303021321), we get a palindrome (233423324332).

The spelling of 123120303011 in words is "one hundred twenty-three billion, one hundred twenty million, three hundred three thousand, eleven".