210101010013123 has 8 divisors (see below), whose sum is σ = 210198097014048. Its totient is φ = 210003940038144.

The previous prime is 210101010013051. The next prime is 210101010013159. The reversal of 210101010013123 is 321310010101012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210101010013123 is a prime.

It is a super-2 number, since 2×210101010013123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210101010013097 and 210101010013106.

It is not an unprimeable number, because it can be changed into a prime (210101010013183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20462461 + ... + 28964017.

It is an arithmetic number, because the mean of its divisors is an integer number (26274762126756).

Almost surely, 2^{210101010013123} is an apocalyptic number.

210101010013123 is a deficient number, since it is larger than the sum of its proper divisors (97087000925).

210101010013123 is an equidigital number, since it uses as much as digits as its factorization.

210101010013123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8512973.

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

Adding to 210101010013123 its reverse (321310010101012), we get a palindrome (531411020114135).

The spelling of 210101010013123 in words is "two hundred ten trillion, one hundred one billion, ten million, thirteen thousand, one hundred twenty-three".