20361304140 has 48 divisors (see below), whose sum is σ = 57023205120. Its totient is φ = 5428580800.

The previous prime is 20361304121. The next prime is 20361304163. The reversal of 20361304140 is 4140316302.

It is a super-3 number, since 3×20361304140³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 20361304140.

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, 289351 + ... + 352769.

It is an arithmetic number, because the mean of its divisors is an integer number (1187983440).

Almost surely, 2^20361304140 is an apocalyptic number.

20361304140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20361304140 is an abundant number, since it is smaller than the sum of its proper divisors (36661900980).

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

20361304140 is a wasteful number, since it uses less digits than its factorization.

20361304140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68782 (or 68780 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The spelling of 20361304140 in words is "twenty billion, three hundred sixty-one million, three hundred four thousand, one hundred forty".