1011331132320 has 48 divisors (see below), whose sum is σ = 3185693068320. Its totient is φ = 269688301824.

The previous prime is 1011331132313. The next prime is 1011331132363. The reversal of 1011331132320 is 232311331101.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

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, 1053469450 + ... + 1053470409.

It is an arithmetic number, because the mean of its divisors is an integer number (66368605590).

Almost surely, 2^{1011331132320} is an apocalyptic number.

1011331132320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011331132320 is an abundant number, since it is smaller than the sum of its proper divisors (2174361936000).

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

1011331132320 is a wasteful number, since it uses less digits than its factorization.

1011331132320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106939877 (or 2106939869 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1011331132320 its reverse (232311331101), we get a palindrome (1243642463421).

The spelling of 1011331132320 in words is "one trillion, eleven billion, three hundred thirty-one million, one hundred thirty-two thousand, three hundred twenty".