201123103111037 has 2 divisors, whose sum is σ = 201123103111038. Its totient is φ = 201123103111036.

The previous prime is 201123103111031. The next prime is 201123103111079. The reversal of 201123103111037 is 730111301321102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108995145125476 + 92127957985561 = 10440074^2 + 9598331^2 .

It is a cyclic number.

It is not a de Polignac number, because 201123103111037 - 2³² = 201118808143741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201123103110997 and 201123103111015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201123103111031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100561551555518 + 100561551555519.

It is an arithmetic number, because the mean of its divisors is an integer number (100561551555519).

Almost surely, 2^{201123103111037} is an apocalyptic number.

It is an amenable number.

201123103111037 is a deficient number, since it is larger than the sum of its proper divisors (1).

201123103111037 is an equidigital number, since it uses as much as digits as its factorization.

201123103111037 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.

Adding to 201123103111037 its reverse (730111301321102), we get a palindrome (931234404432139).

The spelling of 201123103111037 in words is "two hundred one trillion, one hundred twenty-three billion, one hundred three million, one hundred eleven thousand, thirty-seven".