10121823 has 6 divisors (see below), whose sum is σ = 14620424. Its totient is φ = 6747876.

The previous prime is 10121821. The next prime is 10121833. The reversal of 10121823 is 32812101.

It is not a de Polignac number, because 10121823 - 2¹ = 10121821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10121796 and 10121805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 562315 + ... + 562332.

Almost surely, 2^10121823 is an apocalyptic number.

10121823 is a deficient number, since it is larger than the sum of its proper divisors (4498601).

10121823 is a wasteful number, since it uses less digits than its factorization.

10121823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124653 (or 1124650 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 10121823 is about 3181.4812587850. The cubic root of 10121823 is about 216.3148058858.

Adding to 10121823 its reverse (32812101), we get a palindrome (42933924).

The spelling of 10121823 in words is "ten million, one hundred twenty-one thousand, eight hundred twenty-three".