23021022011 has 16 divisors (see below), whose sum is σ = 25050604320. Its totient is φ = 21028627200.

The previous prime is 23021022007. The next prime is 23021022029. The reversal of 23021022011 is 11022012032.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23021022011 - 2² = 23021022007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23021027011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3453800 + ... + 3460458.

It is an arithmetic number, because the mean of its divisors is an integer number (1565662770).

Almost surely, 2^23021022011 is an apocalyptic number.

23021022011 is a deficient number, since it is larger than the sum of its proper divisors (2029582309).

23021022011 is a wasteful number, since it uses less digits than its factorization.

23021022011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9406.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 23021022011 its reverse (11022012032), we get a palindrome (34043034043).

The spelling of 23021022011 in words is "twenty-three billion, twenty-one million, twenty-two thousand, eleven".