101303201261 has 2 divisors, whose sum is σ = 101303201262. Its totient is φ = 101303201260.

The previous prime is 101303201191. The next prime is 101303201281. The reversal of 101303201261 is 162102303101.

It is an a-pointer prime, because the next prime (101303201281) can be obtained adding 101303201261 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54694709161 + 46608492100 = 233869^2 + 215890^2 .

It is a cyclic number.

It is not a de Polignac number, because 101303201261 - 2³⁴ = 84123332077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101303201281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50651600630 + 50651600631.

It is an arithmetic number, because the mean of its divisors is an integer number (50651600631).

Almost surely, 2^101303201261 is an apocalyptic number.

It is an amenable number.

101303201261 is a deficient number, since it is larger than the sum of its proper divisors (1).

101303201261 is an equidigital number, since it uses as much as digits as its factorization.

101303201261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 101303201261 its reverse (162102303101), we get a palindrome (263405504362).

The spelling of 101303201261 in words is "one hundred one billion, three hundred three million, two hundred one thousand, two hundred sixty-one".