1011311320 has 32 divisors (see below), whose sum is σ = 2287018800. Its totient is φ = 402467968.

The previous prime is 1011311299. The next prime is 1011311341. The reversal of 1011311320 is 231131101.

1011311320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1011311299) and next prime (1011311341).

It is a self number, because there is not a number n which added to its sum of digits gives 1011311320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56290 + ... + 72049.

Almost surely, 2^1011311320 is an apocalyptic number.

1011311320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011311320 is an abundant number, since it is smaller than the sum of its proper divisors (1275707480).

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

1011311320 is a wasteful number, since it uses less digits than its factorization.

1011311320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128547 (or 128543 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1011311320 is about 31801.1213638765. The cubic root of 1011311320 is about 1003.7563124497.

Adding to 1011311320 its reverse (231131101), we get a palindrome (1242442421).

The spelling of 1011311320 in words is "one billion, eleven million, three hundred eleven thousand, three hundred twenty".