23021019701 has 2 divisors, whose sum is σ = 23021019702. Its totient is φ = 23021019700.

The previous prime is 23021019691. The next prime is 23021019803. The reversal of 23021019701 is 10791012032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23003788900 + 17230801 = 151670^2 + 4151^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23021019701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23021019101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11510509850 + 11510509851.

It is an arithmetic number, because the mean of its divisors is an integer number (11510509851).

Almost surely, 2^23021019701 is an apocalyptic number.

It is an amenable number.

23021019701 is a deficient number, since it is larger than the sum of its proper divisors (1).

23021019701 is an equidigital number, since it uses as much as digits as its factorization.

23021019701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 26.

The spelling of 23021019701 in words is "twenty-three billion, twenty-one million, nineteen thousand, seven hundred one".