203122313113061 has 2 divisors, whose sum is σ = 203122313113062. Its totient is φ = 203122313113060.

The previous prime is 203122313113021. The next prime is 203122313113127. The reversal of 203122313113061 is 160311313221302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172673922897025 + 30448390216036 = 13140545^2 + 5518006^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203122313113061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203122313113021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101561156556530 + 101561156556531.

It is an arithmetic number, because the mean of its divisors is an integer number (101561156556531).

Almost surely, 2^{203122313113061} is an apocalyptic number.

It is an amenable number.

203122313113061 is a deficient number, since it is larger than the sum of its proper divisors (1).

203122313113061 is an equidigital number, since it uses as much as digits as its factorization.

203122313113061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

Adding to 203122313113061 its reverse (160311313221302), we get a palindrome (363433626334363).

The spelling of 203122313113061 in words is "two hundred three trillion, one hundred twenty-two billion, three hundred thirteen million, one hundred thirteen thousand, sixty-one".