1213081083 has 16 divisors (see below), whose sum is σ = 1797705600. Its totient is φ = 808473960.

The previous prime is 1213081027. The next prime is 1213081099. The reversal of 1213081083 is 3801803121.

1213081083 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-1213081083 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1213081183) 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, 142168 + ... + 150458.

It is an arithmetic number, because the mean of its divisors is an integer number (112356600).

Almost surely, 2^1213081083 is an apocalyptic number.

1213081083 is a deficient number, since it is larger than the sum of its proper divisors (584624517).

1213081083 is an equidigital number, since it uses as much as digits as its factorization.

1213081083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13719 (or 13713 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1213081083 is about 34829.3135591272. The cubic root of 1213081083 is about 1066.5059354276.

The spelling of 1213081083 in words is "one billion, two hundred thirteen million, eighty-one thousand, eighty-three".