20023243487090 has 16 divisors (see below), whose sum is σ = 36042456366720. Its totient is φ = 8009160041520.

The previous prime is 20023243487059. The next prime is 20023243487173. The reversal of 20023243487090 is 9078434232002.

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, 16555850 + ... + 17724069.

It is an arithmetic number, because the mean of its divisors is an integer number (2252653522920).

Almost surely, 2^{20023243487090} is an apocalyptic number.

20023243487090 is a deficient number, since it is larger than the sum of its proper divisors (16019212879630).

20023243487090 is a wasteful number, since it uses less digits than its factorization.

20023243487090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34338337.

The product of its (nonzero) digits is 580608, while the sum is 44.

The spelling of 20023243487090 in words is "twenty trillion, twenty-three billion, two hundred forty-three million, four hundred eighty-seven thousand, ninety".