1293120293 has 4 divisors (see below), whose sum is σ = 1296107148. Its totient is φ = 1290133440.

The previous prime is 1293120281. The next prime is 1293120299. The reversal of 1293120293 is 3920213921.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 595262404 + 697857889 = 24398^2 + 26417^2 .

It is a cyclic number.

It is not a de Polignac number, because 1293120293 - 2⁶ = 1293120229 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 (1293120299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1492778 + ... + 1493643.

It is an arithmetic number, because the mean of its divisors is an integer number (324026787).

Almost surely, 2^1293120293 is an apocalyptic number.

It is an amenable number.

1293120293 is a deficient number, since it is larger than the sum of its proper divisors (2986855).

1293120293 is an equidigital number, since it uses as much as digits as its factorization.

1293120293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2986854.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 1293120293 is about 35959.9818270254. The cubic root of 1293120293 is about 1089.4642298632.

The spelling of 1293120293 in words is "one billion, two hundred ninety-three million, one hundred twenty thousand, two hundred ninety-three".