21124530013096 has 8 divisors (see below), whose sum is σ = 39608493774570. Its totient is φ = 10562265006544.

The previous prime is 21124530013079. The next prime is 21124530013117. The reversal of 21124530013096 is 69031003542112.

It can be written as a sum of positive squares in only one way, i.e., 19344040090596 + 1780489922500 = 4398186^2 + 1334350^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320283125811 + ... + 1320283125826.

Almost surely, 2^{21124530013096} is an apocalyptic number.

It is an amenable number.

21124530013096 is a deficient number, since it is larger than the sum of its proper divisors (18483963761474).

21124530013096 is a wasteful number, since it uses less digits than its factorization.

21124530013096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2640566251643 (or 2640566251639 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 21124530013096 in words is "twenty-one trillion, one hundred twenty-four billion, five hundred thirty million, thirteen thousand, ninety-six".