3155320120 has 128 divisors (see below), whose sum is σ = 7764480000. Its totient is φ = 1149603840.

The previous prime is 3155320117. The next prime is 3155320121. The reversal of 3155320120 is 210235513.

It is a junction number, because it is equal to n+sod(n) for n = 3155320091 and 3155320100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3155320121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4688104 + ... + 4688776.

It is an arithmetic number, because the mean of its divisors is an integer number (60660000).

Almost surely, 2^3155320120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3155320120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3882240000).

3155320120 is an abundant number, since it is smaller than the sum of its proper divisors (4609159880).

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

3155320120 is a wasteful number, since it uses less digits than its factorization.

3155320120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933 (or 929 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 3155320120 is about 56172.2362025939. The cubic root of 3155320120 is about 1466.7220091606.

Adding to 3155320120 its reverse (210235513), we get a palindrome (3365555633).

The spelling of 3155320120 in words is "three billion, one hundred fifty-five million, three hundred twenty thousand, one hundred twenty".