20512130220124 has 48 divisors (see below), whose sum is σ = 37774501632000. Its totient is φ = 9732488800320.

The previous prime is 20512130220091. The next prime is 20512130220157. The reversal of 20512130220124 is 42102203121502.

It is an interprime number because it is at equal distance from previous prime (20512130220091) and next prime (20512130220157).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10842627 + ... + 12593125.

It is an arithmetic number, because the mean of its divisors is an integer number (786968784000).

Almost surely, 2^{20512130220124} is an apocalyptic number.

It is an amenable number.

20512130220124 is a deficient number, since it is larger than the sum of its proper divisors (17262371411876).

20512130220124 is a wasteful number, since it uses less digits than its factorization.

20512130220124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752370 (or 1752368 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 20512130220124 its reverse (42102203121502), we get a palindrome (62614333341626).

The spelling of 20512130220124 in words is "twenty trillion, five hundred twelve billion, one hundred thirty million, two hundred twenty thousand, one hundred twenty-four".