201323022031 has 2 divisors, whose sum is σ = 201323022032. Its totient is φ = 201323022030.

The previous prime is 201323022011. The next prime is 201323022067. The reversal of 201323022031 is 130220323102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201323022031 - 2⁷ = 201323021903 is a prime.

It is a super-2 number, since 2×201323022031² (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 (201323022011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100661511015 + 100661511016.

It is an arithmetic number, because the mean of its divisors is an integer number (100661511016).

Almost surely, 2^201323022031 is an apocalyptic number.

201323022031 is a deficient number, since it is larger than the sum of its proper divisors (1).

201323022031 is an equidigital number, since it uses as much as digits as its factorization.

201323022031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 201323022031 its reverse (130220323102), we get a palindrome (331543345133).

The spelling of 201323022031 in words is "two hundred one billion, three hundred twenty-three million, twenty-two thousand, thirty-one".