20345243104430 has 32 divisors (see below), whose sum is σ = 36641010976416. Its totient is φ = 8133748568064.

The previous prime is 20345243104409. The next prime is 20345243104471. The reversal of 20345243104430 is 3440134254302.

It is a super-3 number, since 3×20345243104430³ (a number of 41 digits) contains 333 as substring.

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, 182532377 + ... + 182643803.

It is an arithmetic number, because the mean of its divisors is an integer number (1145031593013).

Almost surely, 2^{20345243104430} is an apocalyptic number.

20345243104430 is a deficient number, since it is larger than the sum of its proper divisors (16295767871986).

20345243104430 is a wasteful number, since it uses less digits than its factorization.

20345243104430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121028.

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 20345243104430 its reverse (3440134254302), we get a palindrome (23785377358732).

The spelling of 20345243104430 in words is "twenty trillion, three hundred forty-five billion, two hundred forty-three million, one hundred four thousand, four hundred thirty".