23021403011 has 4 divisors (see below), whose sum is σ = 23024378592. Its totient is φ = 23018427432.

The previous prime is 23021402969. The next prime is 23021403049. The reversal of 23021403011 is 11030412032.

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 23021403011 - 2²² = 23017208707 is a prime.

It is a super-2 number, since 2×23021403011² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23021403061) 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 3 ways as a sum of consecutive naturals, for example, 1476155 + ... + 1491668.

It is an arithmetic number, because the mean of its divisors is an integer number (5756094648).

Almost surely, 2^23021403011 is an apocalyptic number.

23021403011 is a deficient number, since it is larger than the sum of its proper divisors (2975581).

23021403011 is an equidigital number, since it uses as much as digits as its factorization.

23021403011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2975580.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 23021403011 its reverse (11030412032), we get a palindrome (34051815043).

The spelling of 23021403011 in words is "twenty-three billion, twenty-one million, four hundred three thousand, eleven".