3123120450 has 48 divisors (see below), whose sum is σ = 7755191136. Its totient is φ = 831772800.

The previous prime is 3123120419. The next prime is 3123120479. The reversal of 3123120450 is 540213213.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 108814 + ... + 134486.

It is an arithmetic number, because the mean of its divisors is an integer number (161566482).

Almost surely, 2^3123120450 is an apocalyptic number.

3123120450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3123120450 is an abundant number, since it is smaller than the sum of its proper divisors (4632070686).

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

3123120450 is a wasteful number, since it uses less digits than its factorization.

3123120450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26499 (or 26494 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 3123120450 is about 55884.8857026656. The cubic root of 3123120450 is about 1461.7156989868.

Adding to 3123120450 its reverse (540213213), we get a palindrome (3663333663).

It can be divided in two parts, 31231 and 20450, that added together give a triangular number (51681 = T₃₂₁).

The spelling of 3123120450 in words is "three billion, one hundred twenty-three million, one hundred twenty thousand, four hundred fifty".