12102420104 has 16 divisors (see below), whose sum is σ = 22844335500. Its totient is φ = 6010597312.

The previous prime is 12102420103. The next prime is 12102420107. The reversal of 12102420104 is 40102420121.

It can be written as a sum of positive squares in 2 ways, for example, as 8966196100 + 3136224004 = 94690^2 + 56002^2 .

It is not an unprimeable number, because it can be changed into a prime (12102420103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5075327 + ... + 5077710.

Almost surely, 2^12102420104 is an apocalyptic number.

It is an amenable number.

12102420104 is a deficient number, since it is larger than the sum of its proper divisors (10741915396).

12102420104 is a wasteful number, since it uses less digits than its factorization.

12102420104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10153192 (or 10153188 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12102420104 its sum of digits (17), we get a palindrome (12102420121).

Adding to 12102420104 its reverse (40102420121), we get a palindrome (52204840225).

The spelling of 12102420104 in words is "twelve billion, one hundred two million, four hundred twenty thousand, one hundred four".