20513051130502 has 16 divisors (see below), whose sum is σ = 35312365370880. Its totient is φ = 8754523912008.

The previous prime is 20513051130409. The next prime is 20513051130541. The reversal of 20513051130502 is 20503115031502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3065306148 + ... + 3065312839.

It is an arithmetic number, because the mean of its divisors is an integer number (2207022835680).

Almost surely, 2^{20513051130502} is an apocalyptic number.

20513051130502 is a deficient number, since it is larger than the sum of its proper divisors (14799314240378).

20513051130502 is a wasteful number, since it uses less digits than its factorization.

20513051130502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6130619235.

The product of its (nonzero) digits is 4500, while the sum is 28.

The spelling of 20513051130502 in words is "twenty trillion, five hundred thirteen billion, fifty-one million, one hundred thirty thousand, five hundred two".