20124103412 has 18 divisors (see below), whose sum is σ = 40966925202. Its totient is φ = 8624615664.

The previous prime is 20124103387. The next prime is 20124103459. The reversal of 20124103412 is 21430142102.

It can be written as a sum of positive squares in only one way, i.e., 11967484816 + 8156618596 = 109396^2 + 90314^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51336803 + ... + 51337194.

It is an arithmetic number, because the mean of its divisors is an integer number (2275940289).

Almost surely, 2^20124103412 is an apocalyptic number.

It is an amenable number.

20124103412 is an abundant number, since it is smaller than the sum of its proper divisors (20842821790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20124103412 is a wasteful number, since it uses less digits than its factorization.

20124103412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102674015 (or 102674006 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20124103412 its reverse (21430142102), we get a palindrome (41554245514).

The spelling of 20124103412 in words is "twenty billion, one hundred twenty-four million, one hundred three thousand, four hundred twelve".