11021002123 has 8 divisors (see below), whose sum is σ = 11207766528. Its totient is φ = 10834892904.

The previous prime is 11021002121. The next prime is 11021002141. The reversal of 11021002123 is 32120012011.

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

It is a cyclic number.

It is not a de Polignac number, because 11021002123 - 2¹ = 11021002121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11021002121) 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, 129811 + ... + 197212.

It is an arithmetic number, because the mean of its divisors is an integer number (1400970816).

Almost surely, 2^11021002123 is an apocalyptic number.

11021002123 is a deficient number, since it is larger than the sum of its proper divisors (186764405).

11021002123 is an equidigital number, since it uses as much as digits as its factorization.

11021002123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327593.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11021002123 its reverse (32120012011), we get a palindrome (43141014134).

The spelling of 11021002123 in words is "eleven billion, twenty-one million, two thousand, one hundred twenty-three".