3124152421 has 6 divisors (see below), whose sum is σ = 3382958130. Its totient is φ = 2883832848.

The previous prime is 3124152419. The next prime is 3124152439. The reversal of 3124152421 is 1242514213.

3124152421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 130530625 + 2993621796 = 11425^2 + 54714^2 .

It is not a de Polignac number, because 3124152421 - 2¹ = 3124152419 is a prime.

It is a super-2 number, since 2×3124152421² = 19520656699280322482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3124182421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9242886 + ... + 9243223.

It is an arithmetic number, because the mean of its divisors is an integer number (563826355).

Almost surely, 2^3124152421 is an apocalyptic number.

It is an amenable number.

3124152421 is a deficient number, since it is larger than the sum of its proper divisors (258805709).

3124152421 is a wasteful number, since it uses less digits than its factorization.

3124152421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18486135 (or 18486122 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 3124152421 is about 55894.1179463457. The cubic root of 3124152421 is about 1461.8766792330.

Adding to 3124152421 its reverse (1242514213), we get a palindrome (4366666634).

The spelling of 3124152421 in words is "three billion, one hundred twenty-four million, one hundred fifty-two thousand, four hundred twenty-one".