1312019983 has 8 divisors (see below), whose sum is σ = 1331164368. Its totient is φ = 1293003264.

The previous prime is 1312019957. The next prime is 1312019987. The reversal of 1312019983 is 3899102131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1312019983 - 2²⁹ = 775149071 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 (1312019987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11116 + ... + 52417.

It is an arithmetic number, because the mean of its divisors is an integer number (166395546).

Almost surely, 2^1312019983 is an apocalyptic number.

1312019983 is a deficient number, since it is larger than the sum of its proper divisors (19144385).

1312019983 is a wasteful number, since it uses less digits than its factorization.

1312019983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63833.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 1312019983 is about 36221.8163956475. The cubic root of 1312019983 is about 1094.7462929102.

The spelling of 1312019983 in words is "one billion, three hundred twelve million, nineteen thousand, nine hundred eighty-three".