1213708373 has 16 divisors (see below), whose sum is σ = 1289349120. Its totient is φ = 1140480000.

The previous prime is 1213708339. The next prime is 1213708403. The reversal of 1213708373 is 3738073121.

It is a cyclic number.

It is not a de Polignac number, because 1213708373 - 2¹⁴ = 1213691989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213708303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 860693 + ... + 862101.

It is an arithmetic number, because the mean of its divisors is an integer number (80584320).

Almost surely, 2^1213708373 is an apocalyptic number.

It is an amenable number.

1213708373 is a deficient number, since it is larger than the sum of its proper divisors (75640747).

1213708373 is a wasteful number, since it uses less digits than its factorization.

1213708373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 1213708373 is about 34838.3175971516. The cubic root of 1213708373 is about 1066.6897355145.

The spelling of 1213708373 in words is "one billion, two hundred thirteen million, seven hundred eight thousand, three hundred seventy-three".