1351111983 has 32 divisors (see below), whose sum is σ = 2047368960. Its totient is φ = 785687040.

The previous prime is 1351111973. The next prime is 1351112033. The reversal of 1351111983 is 3891111531.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1351111983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351111903) 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 31 ways as a sum of consecutive naturals, for example, 318748 + ... + 322958.

It is an arithmetic number, because the mean of its divisors is an integer number (63980280).

Almost surely, 2^1351111983 is an apocalyptic number.

1351111983 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1351111983 is a deficient number, since it is larger than the sum of its proper divisors (696256977).

1351111983 is a wasteful number, since it uses less digits than its factorization.

1351111983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4679.

The product of its digits is 3240, while the sum is 33.

The square root of 1351111983 is about 36757.4751989306. The cubic root of 1351111983 is about 1105.5128167136.

The spelling of 1351111983 in words is "one billion, three hundred fifty-one million, one hundred eleven thousand, nine hundred eighty-three".