3020400120 has 64 divisors (see below), whose sum is σ = 9163044000. Its totient is φ = 796387328.

The previous prime is 3020400079. The next prime is 3020400121. The reversal of 3020400120 is 210040203.

3020400120 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 3020400096 and 3020400105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3020400121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130725 + ... + 152084.

Almost surely, 2^3020400120 is an apocalyptic number.

3020400120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3020400120 is an abundant number, since it is smaller than the sum of its proper divisors (6142643880).

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

3020400120 is a wasteful number, since it uses less digits than its factorization.

3020400120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282912 (or 282908 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 3020400120 is about 54958.1670000010. The cubic root of 3020400120 is about 1445.5113063859.

Adding to 3020400120 its reverse (210040203), we get a palindrome (3230440323).

The spelling of 3020400120 in words is "three billion, twenty million, four hundred thousand, one hundred twenty".