11012121202423 has 4 divisors (see below), whose sum is σ = 12013223129928. Its totient is φ = 10011019274920.

The previous prime is 11012121202403. The next prime is 11012121202427. The reversal of 11012121202423 is 32420212121011.

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 11012121202423 - 2²⁹ = 11011584331511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11012121202394 and 11012121202403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012121202427) 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, 500550963736 + ... + 500550963757.

It is an arithmetic number, because the mean of its divisors is an integer number (3003305782482).

Almost surely, 2^{11012121202423} is an apocalyptic number.

11012121202423 is a deficient number, since it is larger than the sum of its proper divisors (1001101927505).

11012121202423 is a wasteful number, since it uses less digits than its factorization.

11012121202423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001101927504.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 11012121202423 its reverse (32420212121011), we get a palindrome (43432333323434).

The spelling of 11012121202423 in words is "eleven trillion, twelve billion, one hundred twenty-one million, two hundred two thousand, four hundred twenty-three".