1218003132 has 48 divisors (see below), whose sum is σ = 3094761600. Its totient is φ = 371367360.

The previous prime is 1218003109. The next prime is 1218003133. The reversal of 1218003132 is 2313008121.

It is a junction number, because it is equal to n+sod(n) for n = 1218003099 and 1218003108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1218003133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85494 + ... + 98717.

It is an arithmetic number, because the mean of its divisors is an integer number (64474200).

Almost surely, 2^1218003132 is an apocalyptic number.

1218003132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1218003132 is an abundant number, since it is smaller than the sum of its proper divisors (1876758468).

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

1218003132 is a wasteful number, since it uses less digits than its factorization.

1218003132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184266 (or 184264 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1218003132 is about 34899.9016044458. The cubic root of 1218003132 is about 1067.9464301428.

The spelling of 1218003132 in words is "one billion, two hundred eighteen million, three thousand, one hundred thirty-two".