20531214424430 has 32 divisors (see below), whose sum is σ = 37407338033184. Its totient is φ = 8112260955136.

The previous prime is 20531214424429. The next prime is 20531214424433. The reversal of 20531214424430 is 3442441213502.

It is a super-3 number, since 3×20531214424430³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20531214424433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3326162 + ... + 7219818.

It is an arithmetic number, because the mean of its divisors is an integer number (1168979313537).

Almost surely, 2^{20531214424430} is an apocalyptic number.

20531214424430 is a deficient number, since it is larger than the sum of its proper divisors (16876123608754).

20531214424430 is a wasteful number, since it uses less digits than its factorization.

20531214424430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3900100.

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 20531214424430 its reverse (3442441213502), we get a palindrome (23973655637932).

The spelling of 20531214424430 in words is "twenty trillion, five hundred thirty-one billion, two hundred fourteen million, four hundred twenty-four thousand, four hundred thirty".