1292120283 has 8 divisors (see below), whose sum is σ = 1725124096. Its totient is φ = 860265000.

The previous prime is 1292120257. The next prime is 1292120321. The reversal of 1292120283 is 3820212921.

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

It is not a de Polignac number, because 1292120283 - 2¹⁰ = 1292119259 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1292120283.

It is not an unprimeable number, because it can be changed into a prime (1292120383) 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 7 ways as a sum of consecutive naturals, for example, 284503 + ... + 289008.

It is an arithmetic number, because the mean of its divisors is an integer number (215640512).

Almost surely, 2^1292120283 is an apocalyptic number.

1292120283 is a deficient number, since it is larger than the sum of its proper divisors (433003813).

1292120283 is an equidigital number, since it uses as much as digits as its factorization.

1292120283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574265.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1292120283 is about 35946.0746535696. The cubic root of 1292120283 is about 1089.1833186201.

The spelling of 1292120283 in words is "one billion, two hundred ninety-two million, one hundred twenty thousand, two hundred eighty-three".