201322123031 has 2 divisors, whose sum is σ = 201322123032. Its totient is φ = 201322123030.

The previous prime is 201322122997. The next prime is 201322123097. The reversal of 201322123031 is 130321223102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201322123031 - 2¹⁴ = 201322106647 is a prime.

It is a super-2 number, since 2×201322123031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201322122994 and 201322123012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201322123931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100661061515 + 100661061516.

It is an arithmetic number, because the mean of its divisors is an integer number (100661061516).

Almost surely, 2^201322123031 is an apocalyptic number.

201322123031 is a deficient number, since it is larger than the sum of its proper divisors (1).

201322123031 is an equidigital number, since it uses as much as digits as its factorization.

201322123031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 201322123031 its reverse (130321223102), we get a palindrome (331643346133).

The spelling of 201322123031 in words is "two hundred one billion, three hundred twenty-two million, one hundred twenty-three thousand, thirty-one".