120103100261 has 2 divisors, whose sum is σ = 120103100262. Its totient is φ = 120103100260.

The previous prime is 120103100207. The next prime is 120103100279. The reversal of 120103100261 is 162001301021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94061209636 + 26041890625 = 306694^2 + 161375^2 .

It is a cyclic number.

It is not a de Polignac number, because 120103100261 - 2³⁴ = 102923231077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120103100461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60051550130 + 60051550131.

It is an arithmetic number, because the mean of its divisors is an integer number (60051550131).

Almost surely, 2^120103100261 is an apocalyptic number.

It is an amenable number.

120103100261 is a deficient number, since it is larger than the sum of its proper divisors (1).

120103100261 is an equidigital number, since it uses as much as digits as its factorization.

120103100261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 120103100261 its reverse (162001301021), we get a palindrome (282104401282).

The spelling of 120103100261 in words is "one hundred twenty billion, one hundred three million, one hundred thousand, two hundred sixty-one".