11500121741 has 2 divisors, whose sum is σ = 11500121742. Its totient is φ = 11500121740.

The previous prime is 11500121729. The next prime is 11500121749. The reversal of 11500121741 is 14712100511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11177775625 + 322346116 = 105725^2 + 17954^2 .

It is a cyclic number.

It is not a de Polignac number, because 11500121741 - 2¹⁰ = 11500120717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11500121749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5750060870 + 5750060871.

It is an arithmetic number, because the mean of its divisors is an integer number (5750060871).

Almost surely, 2^11500121741 is an apocalyptic number.

It is an amenable number.

11500121741 is a deficient number, since it is larger than the sum of its proper divisors (1).

11500121741 is an equidigital number, since it uses as much as digits as its factorization.

11500121741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 23.

The spelling of 11500121741 in words is "eleven billion, five hundred million, one hundred twenty-one thousand, seven hundred forty-one".