20021011148 has 24 divisors (see below), whose sum is σ = 35857626000. Its totient is φ = 9778137408.

The previous prime is 20021011103. The next prime is 20021011229. The reversal of 20021011148 is 84111012002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233123 + ... + 307226.

It is an arithmetic number, because the mean of its divisors is an integer number (1494067750).

Almost surely, 2^20021011148 is an apocalyptic number.

It is an amenable number.

20021011148 is a deficient number, since it is larger than the sum of its proper divisors (15836614852).

20021011148 is a wasteful number, since it uses less digits than its factorization.

20021011148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540569 (or 540567 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

The spelling of 20021011148 in words is "twenty billion, twenty-one million, eleven thousand, one hundred forty-eight".