20221423123240 has 64 divisors (see below), whose sum is σ = 45858407362560. Its totient is φ = 8024538170880.

The previous prime is 20221423123067. The next prime is 20221423123273. The reversal of 20221423123240 is 4232132412202.

It is a junction number, because it is equal to n+sod(n) for n = 20221423123199 and 20221423123208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143099020 + ... + 143240260.

It is an arithmetic number, because the mean of its divisors is an integer number (716537615040).

Almost surely, 2^{20221423123240} is an apocalyptic number.

20221423123240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221423123240 is an abundant number, since it is smaller than the sum of its proper divisors (25636984239320).

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

20221423123240 is a wasteful number, since it uses less digits than its factorization.

20221423123240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169562 (or 169558 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 20221423123240 its reverse (4232132412202), we get a palindrome (24453555535442).

The spelling of 20221423123240 in words is "twenty trillion, two hundred twenty-one billion, four hundred twenty-three million, one hundred twenty-three thousand, two hundred forty".