1213236696 has 64 divisors (see below), whose sum is σ = 3469132800. Its totient is φ = 346364928.

The previous prime is 1213236679. The next prime is 1213236743. The reversal of 1213236696 is 6966323121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315441 + ... + 319263.

It is an arithmetic number, because the mean of its divisors is an integer number (54205200).

Almost surely, 2^1213236696 is an apocalyptic number.

It is an amenable number.

1213236696 is an abundant number, since it is smaller than the sum of its proper divisors (2255896104).

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

1213236696 is a wasteful number, since it uses less digits than its factorization.

1213236696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5728 (or 5724 counting only the distinct ones).

The product of its digits is 69984, while the sum is 39.

The square root of 1213236696 is about 34831.5474247126. The cubic root of 1213236696 is about 1066.5515369664.

It can be divided in two parts, 12132 and 36696, that added together give a triangular number (48828 = T₃₁₂).

The spelling of 1213236696 in words is "one billion, two hundred thirteen million, two hundred thirty-six thousand, six hundred ninety-six".