12136424428 has 6 divisors (see below), whose sum is σ = 21238742756. Its totient is φ = 6068212212.

The previous prime is 12136424407. The next prime is 12136424429. The reversal of 12136424428 is 82442463121.

It is a super-3 number, since 3×12136424428³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12136424429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1517053050 + ... + 1517053057.

Almost surely, 2^12136424428 is an apocalyptic number.

It is an amenable number.

12136424428 is a deficient number, since it is larger than the sum of its proper divisors (9102318328).

12136424428 is a wasteful number, since it uses less digits than its factorization.

12136424428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3034106111 (or 3034106109 counting only the distinct ones).

The product of its digits is 73728, while the sum is 37.

Adding to 12136424428 its reverse (82442463121), we get a palindrome (94578887549).

The spelling of 12136424428 in words is "twelve billion, one hundred thirty-six million, four hundred twenty-four thousand, four hundred twenty-eight".