7211371413 has 4 divisors (see below), whose sum is σ = 9615161888. Its totient is φ = 4807580940.

The previous prime is 7211371393. The next prime is 7211371421. The reversal of 7211371413 is 3141731127.

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: 3141731127 = 3 ⋅1047243709.

It is not a de Polignac number, because 7211371413 - 2⁸ = 7211371157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7211371483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1201895233 + ... + 1201895238.

It is an arithmetic number, because the mean of its divisors is an integer number (2403790472).

Almost surely, 2^7211371413 is an apocalyptic number.

It is an amenable number.

7211371413 is a deficient number, since it is larger than the sum of its proper divisors (2403790475).

7211371413 is a wasteful number, since it uses less digits than its factorization.

7211371413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2403790474.

The product of its digits is 3528, while the sum is 30.

The square root of 7211371413 is about 84919.7939999857. The cubic root of 7211371413 is about 1931.9948065886.

The spelling of 7211371413 in words is "seven billion, two hundred eleven million, three hundred seventy-one thousand, four hundred thirteen".