20112521500340 has 48 divisors (see below), whose sum is σ = 46163389031424. Its totient is φ = 7327522060800.

The previous prime is 20112521500319. The next prime is 20112521500381. The reversal of 20112521500340 is 4300512521102.

It is a super-2 number, since 2×20112521500340² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 954093896 + ... + 954114975.

It is an arithmetic number, because the mean of its divisors is an integer number (961737271488).

Almost surely, 2^{20112521500340} is an apocalyptic number.

20112521500340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112521500340 is an abundant number, since it is smaller than the sum of its proper divisors (26050867531084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20112521500340 is a wasteful number, since it uses less digits than its factorization.

20112521500340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1908208928 (or 1908208926 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 20112521500340 in words is "twenty trillion, one hundred twelve billion, five hundred twenty-one million, five hundred thousand, three hundred forty".