1217123083 has 4 divisors (see below), whose sum is σ = 1327770648. Its totient is φ = 1106475520.

The previous prime is 1217123081. The next prime is 1217123093. The reversal of 1217123083 is 3803217121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3803217121 = 11 ⋅345747011.

It is a cyclic number.

It is not a de Polignac number, because 1217123083 - 2¹ = 1217123081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1217123081) 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, 55323766 + ... + 55323787.

It is an arithmetic number, because the mean of its divisors is an integer number (331942662).

Almost surely, 2^1217123083 is an apocalyptic number.

1217123083 is a deficient number, since it is larger than the sum of its proper divisors (110647565).

1217123083 is a wasteful number, since it uses less digits than its factorization.

1217123083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110647564.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 1217123083 is about 34887.2911387514. The cubic root of 1217123083 is about 1067.6891588734.

The spelling of 1217123083 in words is "one billion, two hundred seventeen million, one hundred twenty-three thousand, eighty-three".