20351132143040 has 56 divisors (see below), whose sum is σ = 48529485343680. Its totient is φ = 8128971168768.

The previous prime is 20351132143037. The next prime is 20351132143117. The reversal of 20351132143040 is 4034123115302.

It is a junction number, because it is equal to n+sod(n) for n = 20351132142994 and 20351132143012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44623112 + ... + 45076871.

Almost surely, 2^{20351132143040} is an apocalyptic number.

20351132143040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20351132143040 is an abundant number, since it is smaller than the sum of its proper divisors (28178353200640).

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

20351132143040 is an equidigital number, since it uses as much as digits as its factorization.

20351132143040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89700709 (or 89700699 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 20351132143040 its reverse (4034123115302), we get a palindrome (24385255258342).

The spelling of 20351132143040 in words is "twenty trillion, three hundred fifty-one billion, one hundred thirty-two million, one hundred forty-three thousand, forty".