523240011 has 24 divisors (see below), whose sum is σ = 893549280. Its totient is φ = 288683136.

The previous prime is 523240007. The next prime is 523240013. The reversal of 523240011 is 110042325.

It is not a de Polignac number, because 523240011 - 2² = 523240007 is a prime.

It is a super-2 number, since 2×523240011² = 547560218222560242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (523240013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141370 + ... + 145023.

It is an arithmetic number, because the mean of its divisors is an integer number (37231220).

Almost surely, 2^523240011 is an apocalyptic number.

523240011 is a deficient number, since it is larger than the sum of its proper divisors (370309269).

523240011 is a wasteful number, since it uses less digits than its factorization.

523240011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286435 (or 286432 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 523240011 is about 22874.4401242959. The cubic root of 523240011 is about 805.8118481769.

Adding to 523240011 its reverse (110042325), we get a palindrome (633282336).

The spelling of 523240011 in words is "five hundred twenty-three million, two hundred forty thousand, eleven".