240434323031 has 12 divisors (see below), whose sum is σ = 279823040208. Its totient is φ = 205987727232.

The previous prime is 240434323027. The next prime is 240434323067. The reversal of 240434323031 is 130323434042.

It is not a de Polignac number, because 240434323031 - 2² = 240434323027 is a prime.

It is a super-2 number, since 2×240434323031² (a number of 24 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 = 240434322985 and 240434323003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240434323331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1073306 + ... + 1277831.

It is an arithmetic number, because the mean of its divisors is an integer number (23318586684).

Almost surely, 2^240434323031 is an apocalyptic number.

240434323031 is a deficient number, since it is larger than the sum of its proper divisors (39388717177).

240434323031 is a wasteful number, since it uses less digits than its factorization.

240434323031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2353238 (or 2353231 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 240434323031 its reverse (130323434042), we get a palindrome (370757757073).

The spelling of 240434323031 in words is "two hundred forty billion, four hundred thirty-four million, three hundred twenty-three thousand, thirty-one".