1012230018 has 18 divisors (see below), whose sum is σ = 2193457539. Its totient is φ = 337365012.

The previous prime is 1012229993. The next prime is 1012230029. The reversal of 1012230018 is 8100322101.

1012230018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 506115009 + 506115009 = 22497^2 + 22497^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=22497.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 131233 + ... + 138731.

Almost surely, 2^1012230018 is an apocalyptic number.

1012230018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1012230018 is an abundant number, since it is smaller than the sum of its proper divisors (1181227521).

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

1012230018 is an frugal number, since it uses more digits than its factorization.

1012230018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15006 (or 7504 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1012230018 is about 31815.5625127075. The cubic root of 1012230018 is about 1004.0601654130.

Multiplying 1012230018 by its sum of digits (18), we get a square (18220140324 = 134982²).

1012230018 divided by its sum of digits (18) gives a square (56235001 = 7499²).

Adding to 1012230018 its reverse (8100322101), we get a palindrome (9112552119).

The spelling of 1012230018 in words is "one billion, twelve million, two hundred thirty thousand, eighteen".