1110020172 has 24 divisors (see below), whose sum is σ = 2632508592. Its totient is φ = 363940800.

The previous prime is 1110020129. The next prime is 1110020173. The reversal of 1110020172 is 2710200111.

It is not an unprimeable number, because it can be changed into a prime (1110020173) 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, 757479 + ... + 758942.

It is an arithmetic number, because the mean of its divisors is an integer number (109687858).

Almost surely, 2^1110020172 is an apocalyptic number.

1110020172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1110020172 is an abundant number, since it is smaller than the sum of its proper divisors (1522488420).

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

1110020172 is a wasteful number, since it uses less digits than its factorization.

1110020172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516489 (or 1516487 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 15.

The square root of 1110020172 is about 33316.9652279436. The cubic root of 1110020172 is about 1035.4050775019.

Adding to 1110020172 its reverse (2710200111), we get a palindrome (3820220283).

The spelling of 1110020172 in words is "one billion, one hundred ten million, twenty thousand, one hundred seventy-two".