1011121983 has 6 divisors (see below), whose sum is σ = 1460509544. Its totient is φ = 674081316.

The previous prime is 1011121981. The next prime is 1011121987. The reversal of 1011121983 is 3891211101.

It is not a de Polignac number, because 1011121983 - 2¹ = 1011121981 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 (1011121981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56173435 + ... + 56173452.

Almost surely, 2^1011121983 is an apocalyptic number.

1011121983 is a deficient number, since it is larger than the sum of its proper divisors (449387561).

1011121983 is a wasteful number, since it uses less digits than its factorization.

1011121983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112346893 (or 112346890 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 27.

The square root of 1011121983 is about 31798.1443326494. The cubic root of 1011121983 is about 1003.6936676879.

The spelling of 1011121983 in words is "one billion, eleven million, one hundred twenty-one thousand, nine hundred eighty-three".