20425020311012 has 6 divisors (see below), whose sum is σ = 35743785544278. Its totient is φ = 10212510155504.

The previous prime is 20425020310973. The next prime is 20425020311131. The reversal of 20425020311012 is 21011302052402.

It can be written as a sum of positive squares in only one way, i.e., 13167783017536 + 7257237293476 = 3628744^2 + 2693926^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2553127538873 + ... + 2553127538880.

It is an arithmetic number, because the mean of its divisors is an integer number (5957297590713).

Almost surely, 2^{20425020311012} is an apocalyptic number.

It is an amenable number.

20425020311012 is a deficient number, since it is larger than the sum of its proper divisors (15318765233266).

20425020311012 is a wasteful number, since it uses less digits than its factorization.

20425020311012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5106255077757 (or 5106255077755 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 20425020311012 its reverse (21011302052402), we get a palindrome (41436322363414).

The spelling of 20425020311012 in words is "twenty trillion, four hundred twenty-five billion, twenty million, three hundred eleven thousand, twelve".