1012110020 has 24 divisors (see below), whose sum is σ = 2136120000. Its totient is φ = 402808032.

The previous prime is 1012110019. The next prime is 1012110023. The reversal of 1012110020 is 200112101.

It is not an unprimeable number, because it can be changed into a prime (1012110023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123170 + ... + 131129.

It is an arithmetic number, because the mean of its divisors is an integer number (89005000).

Almost surely, 2^1012110020 is an apocalyptic number.

1012110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012110020 is an abundant number, since it is smaller than the sum of its proper divisors (1124009980).

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

1012110020 is a wasteful number, since it uses less digits than its factorization.

1012110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254507 (or 254505 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1012110020 is about 31813.6766187123. The cubic root of 1012110020 is about 1004.0204873520.

Adding to 1012110020 its reverse (200112101), we get a palindrome (1212222121).

The spelling of 1012110020 in words is "one billion, twelve million, one hundred ten thousand, twenty".