3123545420 has 48 divisors (see below), whose sum is σ = 6644484000. Its totient is φ = 1233308160.

The previous prime is 3123545401. The next prime is 3123545423. The reversal of 3123545420 is 245453213.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3123545423) 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, 610031 + ... + 615129.

It is an arithmetic number, because the mean of its divisors is an integer number (138426750).

Almost surely, 2^3123545420 is an apocalyptic number.

It is an amenable number.

3123545420 is an abundant number, since it is smaller than the sum of its proper divisors (3520938580).

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

3123545420 is a wasteful number, since it uses less digits than its factorization.

3123545420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5498 (or 5496 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 3123545420 is about 55888.6877641621. The cubic root of 3123545420 is about 1461.7819956237.

Adding to 3123545420 its reverse (245453213), we get a palindrome (3368998633).

The spelling of 3123545420 in words is "three billion, one hundred twenty-three million, five hundred forty-five thousand, four hundred twenty".