1011320231120 has 80 divisors (see below), whose sum is σ = 2502667819008. Its totient is φ = 378738862080.

The previous prime is 1011320231101. The next prime is 1011320231147. The reversal of 1011320231120 is 211320231101.

1011320231120 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 super-2 number, since 2×1011320231120² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 1686884 + ... + 2206403.

Almost surely, 2^{1011320231120} is an apocalyptic number.

1011320231120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011320231120 is an abundant number, since it is smaller than the sum of its proper divisors (1491347587888).

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

1011320231120 is a wasteful number, since it uses less digits than its factorization.

1011320231120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3893508 (or 3893502 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1011320231120 its reverse (211320231101), we get a palindrome (1222640462221).

The spelling of 1011320231120 in words is "one trillion, eleven billion, three hundred twenty million, two hundred thirty-one thousand, one hundred twenty".