1021120983 has 12 divisors (see below), whose sum is σ = 1475255808. Its totient is φ = 680607360.

The previous prime is 1021120981. The next prime is 1021120987. The reversal of 1021120983 is 3890211201.

It is not a de Polignac number, because 1021120983 - 2¹ = 1021120981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021120981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53991 + ... + 70407.

It is an arithmetic number, because the mean of its divisors is an integer number (122937984).

Almost surely, 2^1021120983 is an apocalyptic number.

1021120983 is a deficient number, since it is larger than the sum of its proper divisors (454134825).

1021120983 is a wasteful number, since it uses less digits than its factorization.

1021120983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23334 (or 23331 counting only the distinct ones).

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

The square root of 1021120983 is about 31954.9836958181. The cubic root of 1021120983 is about 1006.9913349924.

The spelling of 1021120983 in words is "one billion, twenty-one million, one hundred twenty thousand, nine hundred eighty-three".