3123215430 has 16 divisors (see below), whose sum is σ = 7495717104. Its totient is φ = 832857440.

The previous prime is 3123215371. The next prime is 3123215437. The reversal of 3123215430 is 345123213.

It is a self number, because there is not a number n which added to its sum of digits gives 3123215430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123215437) 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, 52053561 + ... + 52053620.

It is an arithmetic number, because the mean of its divisors is an integer number (468482319).

Almost surely, 2^3123215430 is an apocalyptic number.

3123215430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3123215430 is an abundant number, since it is smaller than the sum of its proper divisors (4372501674).

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

3123215430 is a wasteful number, since it uses less digits than its factorization.

3123215430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104107191.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 3123215430 is about 55885.7354787427. The cubic root of 3123215430 is about 1461.7305166830.

Adding to 3123215430 its reverse (345123213), we get a palindrome (3468338643).

The spelling of 3123215430 in words is "three billion, one hundred twenty-three million, two hundred fifteen thousand, four hundred thirty".