4012124520 has 32 divisors (see below), whose sum is σ = 12036373920. Its totient is φ = 1069899840.

The previous prime is 4012124461. The next prime is 4012124521. The reversal of 4012124520 is 254212104.

It is not an unprimeable number, because it can be changed into a prime (4012124521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16717066 + ... + 16717305.

It is an arithmetic number, because the mean of its divisors is an integer number (376136685).

Almost surely, 2^4012124520 is an apocalyptic number.

4012124520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4012124520 is an abundant number, since it is smaller than the sum of its proper divisors (8024249400).

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

4012124520 is a wasteful number, since it uses less digits than its factorization.

4012124520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33434385 (or 33434381 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 4012124520 is about 63341.3334245499. Note that the first 3 decimals coincide. The cubic root of 4012124520 is about 1589.0033071593.

Adding to 4012124520 its reverse (254212104), we get a palindrome (4266336624).

The spelling of 4012124520 in words is "four billion, twelve million, one hundred twenty-four thousand, five hundred twenty".