20423341044240 has 80 divisors (see below), whose sum is σ = 65354691365376. Its totient is φ = 5270539622400.

The previous prime is 20423341044233. The next prime is 20423341044259. The reversal of 20423341044240 is 4244014332402.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×20423341044240² (a number of 27 digits) contains 22 as substring.

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, 1372528921 + ... + 1372543800.

Almost surely, 2^{20423341044240} is an apocalyptic number.

20423341044240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20423341044240 is an abundant number, since it is smaller than the sum of its proper divisors (44931350321136).

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

20423341044240 is a wasteful number, since it uses less digits than its factorization.

20423341044240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2745072768 (or 2745072762 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 20423341044240 its reverse (4244014332402), we get a palindrome (24667355376642).

The spelling of 20423341044240 in words is "twenty trillion, four hundred twenty-three billion, three hundred forty-one million, forty-four thousand, two hundred forty".