1243012412 has 12 divisors (see below), whose sum is σ = 2175519696. Its totient is φ = 621435360.

The previous prime is 1243012403. The next prime is 1243012423. The reversal of 1243012412 is 2142103421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54248 + ... + 73680.

It is an arithmetic number, because the mean of its divisors is an integer number (181293308).

Almost surely, 2^1243012412 is an apocalyptic number.

It is an amenable number.

1243012412 is a deficient number, since it is larger than the sum of its proper divisors (932507284).

1243012412 is a wasteful number, since it uses less digits than its factorization.

1243012412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35428 (or 35426 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1243012412 is about 35256.3811529204. The cubic root of 1243012412 is about 1075.2063528872.

Adding to 1243012412 its reverse (2142103421), we get a palindrome (3385115833).

It can be divided in two parts, 12430 and 12412, that added together give a palindrome (24842).

The spelling of 1243012412 in words is "one billion, two hundred forty-three million, twelve thousand, four hundred twelve".