7420523231 has 8 divisors (see below), whose sum is σ = 8267353344. Its totient is φ = 6602399320.

The previous prime is 7420523221. The next prime is 7420523233. The reversal of 7420523231 is 1323250247.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7420523231 - 2¹⁸ = 7420261087 is a prime.

It is a super-2 number, since 2×7420523231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7420523194 and 7420523203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7420523233) 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 7 ways as a sum of consecutive naturals, for example, 7176005 + ... + 7177038.

It is an arithmetic number, because the mean of its divisors is an integer number (1033419168).

Almost surely, 2^7420523231 is an apocalyptic number.

7420523231 is a deficient number, since it is larger than the sum of its proper divisors (846830113).

7420523231 is a wasteful number, since it uses less digits than its factorization.

7420523231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14353101.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 7420523231 is about 86142.4589328631. The cubic root of 7420523231 is about 1950.4950074459.

Adding to 7420523231 its reverse (1323250247), we get a palindrome (8743773478).

The spelling of 7420523231 in words is "seven billion, four hundred twenty million, five hundred twenty-three thousand, two hundred thirty-one".