123010313281 has 2 divisors, whose sum is σ = 123010313282. Its totient is φ = 123010313280.

The previous prime is 123010313249. The next prime is 123010313357. The reversal of 123010313281 is 182313010321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108214023681 + 14796289600 = 328959^2 + 121640^2 .

It is a cyclic number.

It is not a de Polignac number, because 123010313281 - 2⁵ = 123010313249 is a prime.

It is a super-2 number, since 2×123010313281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123010313221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61505156640 + 61505156641.

It is an arithmetic number, because the mean of its divisors is an integer number (61505156641).

Almost surely, 2^123010313281 is an apocalyptic number.

It is an amenable number.

123010313281 is a deficient number, since it is larger than the sum of its proper divisors (1).

123010313281 is an equidigital number, since it uses as much as digits as its factorization.

123010313281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 123010313281 in words is "one hundred twenty-three billion, ten million, three hundred thirteen thousand, two hundred eighty-one".