20423142532052 has 48 divisors (see below), whose sum is σ = 38533992235200. Its totient is φ = 9415238657280.

The previous prime is 20423142532049. The next prime is 20423142532087. The reversal of 20423142532052 is 25023524132402.

It is a super-2 number, since 2×20423142532052² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 352818152 + ... + 352876032.

It is an arithmetic number, because the mean of its divisors is an integer number (802791504900).

Almost surely, 2^{20423142532052} is an apocalyptic number.

It is an amenable number.

20423142532052 is a deficient number, since it is larger than the sum of its proper divisors (18110849703148).

20423142532052 is a wasteful number, since it uses less digits than its factorization.

20423142532052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65576 (or 65574 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 20423142532052 its reverse (25023524132402), we get a palindrome (45446666664454).

The spelling of 20423142532052 in words is "twenty trillion, four hundred twenty-three billion, one hundred forty-two million, five hundred thirty-two thousand, fifty-two".