1011213040 has 80 divisors (see below), whose sum is σ = 2496349152. Its totient is φ = 379625472.

The previous prime is 1011213031. The next prime is 1011213061. The reversal of 1011213040 is 403121101.

1011213040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 1011213040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 620707 + ... + 622333.

Almost surely, 2^1011213040 is an apocalyptic number.

1011213040 is a gapful number since it is divisible by the number (10) 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 1011213040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1248174576).

1011213040 is an abundant number, since it is smaller than the sum of its proper divisors (1485136112).

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

1011213040 is a wasteful number, since it uses less digits than its factorization.

1011213040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114 (or 2108 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1011213040 is about 31799.5760978036. The cubic root of 1011213040 is about 1003.7237961302.

Adding to 1011213040 its reverse (403121101), we get a palindrome (1414334141).

The spelling of 1011213040 in words is "one billion, eleven million, two hundred thirteen thousand, forty".