1213043112678 has 32 divisors (see below), whose sum is σ = 2484829670400. Its totient is φ = 394574727456.

The previous prime is 1213043112583. The next prime is 1213043112713. The reversal of 1213043112678 is 8762113403121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1923318 + ... + 2474921.

It is an arithmetic number, because the mean of its divisors is an integer number (77650927200).

Almost surely, 2^{1213043112678} is an apocalyptic number.

1213043112678 is an abundant number, since it is smaller than the sum of its proper divisors (1271786557722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213043112678 is a wasteful number, since it uses less digits than its factorization.

1213043112678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4399356.

The product of its (nonzero) digits is 48384, while the sum is 39.

Adding to 1213043112678 its reverse (8762113403121), we get a palindrome (9975156515799).

The spelling of 1213043112678 in words is "one trillion, two hundred thirteen billion, forty-three million, one hundred twelve thousand, six hundred seventy-eight".