20525315012342 has 16 divisors (see below), whose sum is σ = 36321294769152. Its totient is φ = 8512803461160.

The previous prime is 20525315012317. The next prime is 20525315012393. The reversal of 20525315012342 is 24321051352502.

It is a super-2 number, since 2×20525315012342² (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 7 ways as a sum of consecutive naturals, for example, 23646675848 + ... + 23646676715.

It is an arithmetic number, because the mean of its divisors is an integer number (2270080923072).

Almost surely, 2^{20525315012342} is an apocalyptic number.

20525315012342 is a deficient number, since it is larger than the sum of its proper divisors (15795979756810).

20525315012342 is a wasteful number, since it uses less digits than its factorization.

20525315012342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47293352603.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 20525315012342 its reverse (24321051352502), we get a palindrome (44846366364844).

The spelling of 20525315012342 in words is "twenty trillion, five hundred twenty-five billion, three hundred fifteen million, twelve thousand, three hundred forty-two".