20423135243150 has 48 divisors (see below), whose sum is σ = 38188069021440. Its totient is φ = 8126025062400.

The previous prime is 20423135243099. The next prime is 20423135243167. The reversal of 20423135243150 is 5134253132402.

It is a self number, because there is not a number n which added to its sum of digits gives 20423135243150.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 206392886 + ... + 206491814.

It is an arithmetic number, because the mean of its divisors is an integer number (795584771280).

Almost surely, 2^{20423135243150} is an apocalyptic number.

20423135243150 is a deficient number, since it is larger than the sum of its proper divisors (17764933778290).

20423135243150 is a wasteful number, since it uses less digits than its factorization.

20423135243150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120749 (or 120744 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 20423135243150 its reverse (5134253132402), we get a palindrome (25557388375552).

The spelling of 20423135243150 in words is "twenty trillion, four hundred twenty-three billion, one hundred thirty-five million, two hundred forty-three thousand, one hundred fifty".