23101140221 has 4 divisors (see below), whose sum is σ = 23140495392. Its totient is φ = 23061785052.

The previous prime is 23101140203. The next prime is 23101140233. The reversal of 23101140221 is 12204110132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23101140221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23101140221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23101142221) 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, 19676705 + ... + 19677878.

It is an arithmetic number, because the mean of its divisors is an integer number (5785123848).

Almost surely, 2^23101140221 is an apocalyptic number.

It is an amenable number.

23101140221 is a deficient number, since it is larger than the sum of its proper divisors (39355171).

23101140221 is an equidigital number, since it uses as much as digits as its factorization.

23101140221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39355170.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 23101140221 its reverse (12204110132), we get a palindrome (35305250353).

The spelling of 23101140221 in words is "twenty-three billion, one hundred one million, one hundred forty thousand, two hundred twenty-one".