7120232421 has 4 divisors (see below), whose sum is σ = 9493643232. Its totient is φ = 4746821612.

The previous prime is 7120232419. The next prime is 7120232437. The reversal of 7120232421 is 1242320217.

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 an emirpimes, since its reverse is a distinct semiprime: 1242320217 = 3 ⋅414106739.

It is a cyclic number.

It is not a de Polignac number, because 7120232421 - 2¹ = 7120232419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7120232391 and 7120232400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7120232921) 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, 1186705401 + ... + 1186705406.

It is an arithmetic number, because the mean of its divisors is an integer number (2373410808).

Almost surely, 2^7120232421 is an apocalyptic number.

It is an amenable number.

7120232421 is a deficient number, since it is larger than the sum of its proper divisors (2373410811).

7120232421 is a wasteful number, since it uses less digits than its factorization.

7120232421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373410810.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 7120232421 is about 84381.4696541841. The cubic root of 7120232421 is about 1923.8212761150.

Adding to 7120232421 its reverse (1242320217), we get a palindrome (8362552638).

The spelling of 7120232421 in words is "seven billion, one hundred twenty million, two hundred thirty-two thousand, four hundred twenty-one".