2101301011123 has 2 divisors, whose sum is σ = 2101301011124. Its totient is φ = 2101301011122.

The previous prime is 2101301011111. The next prime is 2101301011133. The reversal of 2101301011123 is 3211101031012.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2101301011123 - 2⁵ = 2101301011091 is a prime.

It is a super-2 number, since 2×2101301011123² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2101301011097 and 2101301011106.

It is not a weakly prime, because it can be changed into another prime (2101301011133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050650505561 + 1050650505562.

It is an arithmetic number, because the mean of its divisors is an integer number (1050650505562).

Almost surely, 2^{2101301011123} is an apocalyptic number.

2101301011123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101301011123 is an equidigital number, since it uses as much as digits as its factorization.

2101301011123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 2101301011123 its reverse (3211101031012), we get a palindrome (5312402042135).

The spelling of 2101301011123 in words is "two trillion, one hundred one billion, three hundred one million, eleven thousand, one hundred twenty-three".