10101211010123 has 4 divisors (see below), whose sum is σ = 10105009888680. Its totient is φ = 10097412131568.

The previous prime is 10101211010081. The next prime is 10101211010161. The reversal of 10101211010123 is 32101011210101.

10101211010123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10101211010123 - 2²⁴ = 10101194232907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10101211010098 and 10101211010107.

It is not an unprimeable number, because it can be changed into a prime (10101211010623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1899435290 + ... + 1899440607.

It is an arithmetic number, because the mean of its divisors is an integer number (2526252472170).

Almost surely, 2^{10101211010123} is an apocalyptic number.

10101211010123 is a deficient number, since it is larger than the sum of its proper divisors (3798878557).

10101211010123 is an equidigital number, since it uses as much as digits as its factorization.

10101211010123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3798878556.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 10101211010123 its reverse (32101011210101), we get a palindrome (42202222220224).

The spelling of 10101211010123 in words is "ten trillion, one hundred one billion, two hundred eleven million, ten thousand, one hundred twenty-three".