3123153220 has 24 divisors (see below), whose sum is σ = 7154860608. Its totient is φ = 1135692000.

The previous prime is 3123153199. The next prime is 3123153221. The reversal of 3123153220 is 223513213.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 3123153191 and 3123153200.

It is not an unprimeable number, because it can be changed into a prime (3123153221) 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, 7097856 + ... + 7098295.

It is an arithmetic number, because the mean of its divisors is an integer number (298119192).

Almost surely, 2^3123153220 is an apocalyptic number.

It is an amenable number.

3123153220 is an abundant number, since it is smaller than the sum of its proper divisors (4031707388).

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

3123153220 is a wasteful number, since it uses less digits than its factorization.

3123153220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14196171 (or 14196169 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 3123153220 is about 55885.1788938713. The cubic root of 3123153220 is about 1461.7208114223.

Adding to 3123153220 its reverse (223513213), we get a palindrome (3346666433).

The spelling of 3123153220 in words is "three billion, one hundred twenty-three million, one hundred fifty-three thousand, two hundred twenty".