10011212123 has 8 divisors (see below), whose sum is σ = 10948836720. Its totient is φ = 9078173280.

The previous prime is 10011212087. The next prime is 10011212143. The reversal of 10011212123 is 32121211001.

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

It is not a de Polignac number, because 10011212123 - 2¹² = 10011208027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10011212098 and 10011212107.

It is not an unprimeable number, because it can be changed into a prime (10011212143) 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, 1141868 + ... + 1150601.

It is an arithmetic number, because the mean of its divisors is an integer number (1368604590).

Almost surely, 2^10011212123 is an apocalyptic number.

10011212123 is a deficient number, since it is larger than the sum of its proper divisors (937624597).

10011212123 is a wasteful number, since it uses less digits than its factorization.

10011212123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292877.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 10011212123 its reverse (32121211001), we get a palindrome (42132423124).

The spelling of 10011212123 in words is "ten billion, eleven million, two hundred twelve thousand, one hundred twenty-three".