201770567023 has 2 divisors, whose sum is σ = 201770567024. Its totient is φ = 201770567022.

The previous prime is 201770567017. The next prime is 201770567057. The reversal of 201770567023 is 320765077102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201770567023 is a prime.

It is a super-2 number, since 2×201770567023² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201770567003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100885283511 + 100885283512.

It is an arithmetic number, because the mean of its divisors is an integer number (100885283512).

Almost surely, 2^201770567023 is an apocalyptic number.

201770567023 is a deficient number, since it is larger than the sum of its proper divisors (1).

201770567023 is an equidigital number, since it uses as much as digits as its factorization.

201770567023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 123480, while the sum is 40.

The spelling of 201770567023 in words is "two hundred one billion, seven hundred seventy million, five hundred sixty-seven thousand, twenty-three".