101220301013123 has 2 divisors, whose sum is σ = 101220301013124. Its totient is φ = 101220301013122.

The previous prime is 101220301013119. The next prime is 101220301013137. The reversal of 101220301013123 is 321310103022101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101220301013123 - 2² = 101220301013119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101220301013095 and 101220301013104.

It is not a weakly prime, because it can be changed into another prime (101220301003123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50610150506561 + 50610150506562.

It is an arithmetic number, because the mean of its divisors is an integer number (50610150506562).

Almost surely, 2^{101220301013123} is an apocalyptic number.

101220301013123 is a deficient number, since it is larger than the sum of its proper divisors (1).

101220301013123 is an equidigital number, since it uses as much as digits as its factorization.

101220301013123 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 101220301013123 its reverse (321310103022101), we get a palindrome (422530404035224).

The spelling of 101220301013123 in words is "one hundred one trillion, two hundred twenty billion, three hundred one million, thirteen thousand, one hundred twenty-three".