20380547123430 has 64 divisors (see below), whose sum is σ = 52690386567168. Its totient is φ = 5015368068480.

The previous prime is 20380547123429. The next prime is 20380547123437. The reversal of 20380547123430 is 3432174508302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20380547123437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5779974 + ... + 8612153.

It is an arithmetic number, because the mean of its divisors is an integer number (823287290112).

Almost surely, 2^{20380547123430} is an apocalyptic number.

20380547123430 is an abundant number, since it is smaller than the sum of its proper divisors (32309839443738).

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

20380547123430 is a wasteful number, since it uses less digits than its factorization.

20380547123430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14395781.

The product of its (nonzero) digits is 483840, while the sum is 42.

The spelling of 20380547123430 in words is "twenty trillion, three hundred eighty billion, five hundred forty-seven million, one hundred twenty-three thousand, four hundred thirty".