23021101 has 2 divisors, whose sum is σ = 23021102. Its totient is φ = 23021100.

The previous prime is 23021093. The next prime is 23021147. The reversal of 23021101 is 10112032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21808900 + 1212201 = 4670^2 + 1101^2 .

It is a cyclic number.

It is not a de Polignac number, because 23021101 - 2³ = 23021093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23021161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11510550 + 11510551.

It is an arithmetic number, because the mean of its divisors is an integer number (11510551).

Almost surely, 2^23021101 is an apocalyptic number.

It is an amenable number.

23021101 is a deficient number, since it is larger than the sum of its proper divisors (1).

23021101 is an equidigital number, since it uses as much as digits as its factorization.

23021101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 23021101 is about 4798.0309502962. The cubic root of 23021101 is about 284.4736401521.

Adding to 23021101 its reverse (10112032), we get a palindrome (33133133).

It can be divided in two parts, 2302 and 1101, that added together give a triangular number (3403 = T₈₂).

The spelling of 23021101 in words is "twenty-three million, twenty-one thousand, one hundred one".