1240312012 has 12 divisors (see below), whose sum is σ = 2186162440. Its totient is φ = 615694176.

The previous prime is 1240312009. The next prime is 1240312013. The reversal of 1240312012 is 2102130421.

It is a super-3 number, since 3×1240312012³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1240312013) 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, 1114833 + ... + 1115944.

Almost surely, 2^1240312012 is an apocalyptic number.

It is an amenable number.

1240312012 is a deficient number, since it is larger than the sum of its proper divisors (945850428).

1240312012 is a wasteful number, since it uses less digits than its factorization.

1240312012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230920 (or 2230918 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1240312012 is about 35218.0637173596. The cubic root of 1240312012 is about 1074.4271725876.

Adding to 1240312012 its reverse (2102130421), we get a palindrome (3342442433).

The spelling of 1240312012 in words is "one billion, two hundred forty million, three hundred twelve thousand, twelve".