3123152512 has 48 divisors (see below), whose sum is σ = 6566706450. Its totient is φ = 1479366144.

The previous prime is 3123152471. The next prime is 3123152519. The reversal of 3123152512 is 2152513213.

It can be written as a sum of positive squares in only one way, i.e., 2623898176 + 499254336 = 51224^2 + 22344^2 .

It is a super-2 number, since 2×3123152512² = 19508163226423820288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3123152519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12414 + ... + 80002.

Almost surely, 2^3123152512 is an apocalyptic number.

3123152512 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3123152512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3283353225).

3123152512 is an abundant number, since it is smaller than the sum of its proper divisors (3443553938).

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

3123152512 is an equidigital number, since it uses as much as digits as its factorization.

3123152512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67641 (or 67610 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 3123152512 is about 55885.1725594544. The cubic root of 3123152512 is about 1461.7207009679.

Adding to 3123152512 its reverse (2152513213), we get a palindrome (5275665725).

The spelling of 3123152512 in words is "three billion, one hundred twenty-three million, one hundred fifty-two thousand, five hundred twelve".