421136523012 has 24 divisors (see below), whose sum is σ = 987309010912. Its totient is φ = 139713537600.

The previous prime is 421136523011. The next prime is 421136523013. The reversal of 421136523012 is 210325631124.

It is an interprime number because it is at equal distance from previous prime (421136523011) and next prime (421136523013).

It is not an unprimeable number, because it can be changed into a prime (421136523011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83160289 + ... + 83165352.

Almost surely, 2^421136523012 is an apocalyptic number.

It is an amenable number.

421136523012 is an abundant number, since it is smaller than the sum of its proper divisors (566172487900).

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

421136523012 is a wasteful number, since it uses less digits than its factorization.

421136523012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166325859 (or 166325857 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 421136523012 in words is "four hundred twenty-one billion, one hundred thirty-six million, five hundred twenty-three thousand, twelve".