23101221703640 has 64 divisors (see below), whose sum is σ = 52024476247200. Its totient is φ = 9232185388032.

The previous prime is 23101221703633. The next prime is 23101221703673. The reversal of 23101221703640 is 4630712210132.

It is a junction number, because it is equal to n+sod(n) for n = 23101221703597 and 23101221703606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202001996 + ... + 202116324.

Almost surely, 2^{23101221703640} is an apocalyptic number.

23101221703640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23101221703640 is an abundant number, since it is smaller than the sum of its proper divisors (28923254543560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23101221703640 is a wasteful number, since it uses less digits than its factorization.

23101221703640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118836 (or 118832 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

Adding to 23101221703640 its reverse (4630712210132), we get a palindrome (27731933913772).

The spelling of 23101221703640 in words is "twenty-three trillion, one hundred one billion, two hundred twenty-one million, seven hundred three thousand, six hundred forty".