1011322992 has 20 divisors (see below), whose sum is σ = 2612584520. Its totient is φ = 337107648.

The previous prime is 1011322973. The next prime is 1011323009. The reversal of 1011322992 is 2992231101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10534567 + ... + 10534662.

It is an arithmetic number, because the mean of its divisors is an integer number (130629226).

Almost surely, 2^1011322992 is an apocalyptic number.

1011322992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1011322992 is an abundant number, since it is smaller than the sum of its proper divisors (1601261528).

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

1011322992 is a wasteful number, since it uses less digits than its factorization.

1011322992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21069240 (or 21069234 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 1011322992 is about 31801.3048788882. The cubic root of 1011322992 is about 1003.7601740363.

The spelling of 1011322992 in words is "one billion, eleven million, three hundred twenty-two thousand, nine hundred ninety-two".