1012201983 has 24 divisors (see below), whose sum is σ = 1611161552. Its totient is φ = 608404608.

The previous prime is 1012201979. The next prime is 1012201997. The reversal of 1012201983 is 3891022101.

It is not a de Polignac number, because 1012201983 - 2² = 1012201979 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012201903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95566 + ... + 105627.

Almost surely, 2^1012201983 is an apocalyptic number.

1012201983 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1012201983 is a deficient number, since it is larger than the sum of its proper divisors (598959569).

1012201983 is a wasteful number, since it uses less digits than its factorization.

1012201983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201255 (or 201252 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1012201983 is about 31815.1219233873. The cubic root of 1012201983 is about 1004.0508957522.

The spelling of 1012201983 in words is "one billion, twelve million, two hundred one thousand, nine hundred eighty-three".