10011212100123 has 32 divisors (see below), whose sum is σ = 15230381193216. Its totient is φ = 5794648201728.

The previous prime is 10011212100119. The next prime is 10011212100139. The reversal of 10011212100123 is 32100121211001.

It is not a de Polignac number, because 10011212100123 - 2² = 10011212100119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10011212100173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3779161 + ... + 5857002.

It is an arithmetic number, because the mean of its divisors is an integer number (475949412288).

Almost surely, 2^{10011212100123} is an apocalyptic number.

10011212100123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10011212100123 is a deficient number, since it is larger than the sum of its proper divisors (5219169093093).

10011212100123 is a wasteful number, since it uses less digits than its factorization.

10011212100123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9637763.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 10011212100123 its reverse (32100121211001), we get a palindrome (42111333311124).

The spelling of 10011212100123 in words is "ten trillion, eleven billion, two hundred twelve million, one hundred thousand, one hundred twenty-three".