23221411357 has 4 divisors (see below), whose sum is σ = 23221861596. Its totient is φ = 23220961120.

The previous prime is 23221411351. The next prime is 23221411373. The reversal of 23221411357 is 75311412232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21505049316 + 1716362041 = 146646^2 + 41429^2 .

It is a cyclic number.

It is not a de Polignac number, because 23221411357 - 2³ = 23221411349 is a prime.

It is a super-2 number, since 2×23221411357² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23221411351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135994 + ... + 254827.

It is an arithmetic number, because the mean of its divisors is an integer number (5805465399).

Almost surely, 2^23221411357 is an apocalyptic number.

It is an amenable number.

23221411357 is a deficient number, since it is larger than the sum of its proper divisors (450239).

23221411357 is an equidigital number, since it uses as much as digits as its factorization.

23221411357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450238.

The product of its digits is 10080, while the sum is 31.

Adding to 23221411357 its reverse (75311412232), we get a palindrome (98532823589).

The spelling of 23221411357 in words is "twenty-three billion, two hundred twenty-one million, four hundred eleven thousand, three hundred fifty-seven".