4012513020 has 36 divisors (see below), whose sum is σ = 12171290040. Its totient is φ = 1070003424.

The previous prime is 4012513019. The next prime is 4012513031. The reversal of 4012513020 is 203152104.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×4012513020² = 32200521471339040800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 4012512984 and 4012513002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11145690 + ... + 11146049.

It is an arithmetic number, because the mean of its divisors is an integer number (338091390).

Almost surely, 2^4012513020 is an apocalyptic number.

It is an amenable number.

4012513020 is an abundant number, since it is smaller than the sum of its proper divisors (8158777020).

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

4012513020 is a wasteful number, since it uses less digits than its factorization.

4012513020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22291754 (or 22291749 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 4012513020 is about 63344.4000681986. The cubic root of 4012513020 is about 1589.0545940238.

Adding to 4012513020 its reverse (203152104), we get a palindrome (4215665124).

The spelling of 4012513020 in words is "four billion, twelve million, five hundred thirteen thousand, twenty".