15883500121 has 2 divisors, whose sum is σ = 15883500122. Its totient is φ = 15883500120.

The previous prime is 15883500107. The next prime is 15883500131. The reversal of 15883500121 is 12100538851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13566425625 + 2317074496 = 116475^2 + 48136^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15883500121 is a prime.

It is not a weakly prime, because it can be changed into another prime (15883500131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7941750060 + 7941750061.

It is an arithmetic number, because the mean of its divisors is an integer number (7941750061).

Almost surely, 2^15883500121 is an apocalyptic number.

It is an amenable number.

15883500121 is a deficient number, since it is larger than the sum of its proper divisors (1).

15883500121 is an equidigital number, since it uses as much as digits as its factorization.

15883500121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 34.

The spelling of 15883500121 in words is "fifteen billion, eight hundred eighty-three million, five hundred thousand, one hundred twenty-one".