3100425421 has 4 divisors (see below), whose sum is σ = 3100543200. Its totient is φ = 3100307644.

The previous prime is 3100425401. The next prime is 3100425443. The reversal of 3100425421 is 1245240013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3100425421 - 2¹¹ = 3100423373 is a prime.

It is a super-2 number, since 2×3100425421² = 19225275582366054482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3100425392 and 3100425401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3100425401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 690 + ... + 78748.

It is an arithmetic number, because the mean of its divisors is an integer number (775135800).

Almost surely, 2^3100425421 is an apocalyptic number.

It is an amenable number.

3100425421 is a deficient number, since it is larger than the sum of its proper divisors (117779).

3100425421 is an equidigital number, since it uses as much as digits as its factorization.

3100425421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117778.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 3100425421 is about 55681.4638905983. The cubic root of 3100425421 is about 1458.1664323724.

Adding to 3100425421 its reverse (1245240013), we get a palindrome (4345665434).

The spelling of 3100425421 in words is "three billion, one hundred million, four hundred twenty-five thousand, four hundred twenty-one".