23020202101 has 4 divisors (see below), whose sum is σ = 24790986892. Its totient is φ = 21249417312.

The previous prime is 23020202071. The next prime is 23020202123. The reversal of 23020202101 is 10120202032.

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 5562922225 + 17457279876 = 74585^2 + 132126^2 .

It is a cyclic number.

It is not a de Polignac number, because 23020202101 - 2⁵ = 23020202069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 1770784777 = 23020202101 / (2 + 3 + 0 + 2 + 0 + 2 + 0 + 2 + 1 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23020202501) 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, 885392376 + ... + 885392401.

It is an arithmetic number, because the mean of its divisors is an integer number (6197746723).

Almost surely, 2^23020202101 is an apocalyptic number.

It is an amenable number.

23020202101 is a deficient number, since it is larger than the sum of its proper divisors (1770784791).

23020202101 is a wasteful number, since it uses less digits than its factorization.

23020202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770784790.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 23020202101 its reverse (10120202032), we get a palindrome (33140404133).

The spelling of 23020202101 in words is "twenty-three billion, twenty million, two hundred two thousand, one hundred one".