1020120984 has 24 divisors (see below), whose sum is σ = 2762827860. Its totient is φ = 340040304.

The previous prime is 1020120979. The next prime is 1020121007. The reversal of 1020120984 is 4890210201.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7084102 + ... + 7084245.

Almost surely, 2^1020120984 is an apocalyptic number.

It is an amenable number.

1020120984 is an abundant number, since it is smaller than the sum of its proper divisors (1742706876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020120984 is a wasteful number, since it uses less digits than its factorization.

1020120984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14168359 (or 14168352 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1020120984 is about 31939.3328671718. The cubic root of 1020120984 is about 1006.6625070853.

The spelling of 1020120984 in words is "one billion, twenty million, one hundred twenty thousand, nine hundred eighty-four".