1021012983 has 6 divisors (see below), whose sum is σ = 1474796544. Its totient is φ = 680675316.

The previous prime is 1021012981. The next prime is 1021012991. The reversal of 1021012983 is 3892101201.

It is not a de Polignac number, because 1021012983 - 2¹ = 1021012981 is a prime.

It is a super-2 number, since 2×1021012983² = 2084935022909116578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021012981) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56722935 + ... + 56722952.

It is an arithmetic number, because the mean of its divisors is an integer number (245799424).

Almost surely, 2^1021012983 is an apocalyptic number.

1021012983 is a deficient number, since it is larger than the sum of its proper divisors (453783561).

1021012983 is a wasteful number, since it uses less digits than its factorization.

1021012983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113445893 (or 113445890 counting only the distinct ones).

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

The square root of 1021012983 is about 31953.2937738819. The cubic root of 1021012983 is about 1006.9558318867.

The spelling of 1021012983 in words is "one billion, twenty-one million, twelve thousand, nine hundred eighty-three".