20430312146140 has 48 divisors (see below), whose sum is σ = 48921815339712. Its totient is φ = 7099764581376.

The previous prime is 20430312146119. The next prime is 20430312146159. The reversal of 20430312146140 is 4164121303402.

20430312146140 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×20430312146140² (a number of 27 digits) contains 22 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, 2311116864 + ... + 2311125703.

It is an arithmetic number, because the mean of its divisors is an integer number (1019204486244).

Almost surely, 2^{20430312146140} is an apocalyptic number.

20430312146140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20430312146140 is an abundant number, since it is smaller than the sum of its proper divisors (28491503193572).

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

20430312146140 is a wasteful number, since it uses less digits than its factorization.

20430312146140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4622242606 (or 4622242604 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 20430312146140 its reverse (4164121303402), we get a palindrome (24594433449542).

The spelling of 20430312146140 in words is "twenty trillion, four hundred thirty billion, three hundred twelve million, one hundred forty-six thousand, one hundred forty".