1011330012 has 120 divisors (see below), whose sum is σ = 3004106112. Its totient is φ = 262600800.

The previous prime is 1011329993. The next prime is 1011330053. The reversal of 1011330012 is 2100331101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1011330012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 315337 + ... + 318527.

Almost surely, 2^1011330012 is an apocalyptic number.

1011330012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1011330012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1502053056).

1011330012 is an abundant number, since it is smaller than the sum of its proper divisors (1992776100).

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

1011330012 is a wasteful number, since it uses less digits than its factorization.

1011330012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3237 (or 3214 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1011330012 is about 31801.4152515261. The cubic root of 1011330012 is about 1003.7624965321.

Adding to 1011330012 its reverse (2100331101), we get a palindrome (3111661113).

The spelling of 1011330012 in words is "one billion, eleven million, three hundred thirty thousand, twelve".