20125480345412 has 24 divisors (see below), whose sum is σ = 37929595737600. Its totient is φ = 9288485883936.

The previous prime is 20125480345211. The next prime is 20125480345423. The reversal of 20125480345412 is 21454308452102.

It is a self number, because there is not a number n which added to its sum of digits gives 20125480345412.

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, 1626212 + ... + 6549467.

It is an arithmetic number, because the mean of its divisors is an integer number (1580399822400).

Almost surely, 2^{20125480345412} is an apocalyptic number.

It is an amenable number.

20125480345412 is a deficient number, since it is larger than the sum of its proper divisors (17804115392188).

20125480345412 is a wasteful number, since it uses less digits than its factorization.

20125480345412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8223035 (or 8223033 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 41.

Adding to 20125480345412 its reverse (21454308452102), we get a palindrome (41579788797514).

The spelling of 20125480345412 in words is "twenty trillion, one hundred twenty-five billion, four hundred eighty million, three hundred forty-five thousand, four hundred twelve".