1212383613 has 16 divisors (see below), whose sum is σ = 1927766016. Its totient is φ = 662669040.

The previous prime is 1212383593. The next prime is 1212383617. The reversal of 1212383613 is 3163832121.

It is not a de Polignac number, because 1212383613 - 2¹⁶ = 1212318077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212383617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1254573 + ... + 1255538.

It is an arithmetic number, because the mean of its divisors is an integer number (120485376).

Almost surely, 2^1212383613 is an apocalyptic number.

It is an amenable number.

1212383613 is a deficient number, since it is larger than the sum of its proper divisors (715382403).

1212383613 is a wasteful number, since it uses less digits than its factorization.

1212383613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2510144.

The product of its digits is 5184, while the sum is 30.

The square root of 1212383613 is about 34819.2994329294. The cubic root of 1212383613 is about 1066.3014977324.

The spelling of 1212383613 in words is "one billion, two hundred twelve million, three hundred eighty-three thousand, six hundred thirteen".