1200320111331 has 48 divisors (see below), whose sum is σ = 1958863315968. Its totient is φ = 701960515200.

The previous prime is 1200320111329. The next prime is 1200320111339. The reversal of 1200320111331 is 1331110230021.

1200320111331 is a `hidden beast` number, since 1 + 2 + 0 + 0 + 320 + 1 + 11 + 331 = 666.

It is not a de Polignac number, because 1200320111331 - 2¹ = 1200320111329 is a prime.

It is a super-2 number, since 2×1200320111331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1200320111339) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1486306 + ... + 2147031.

It is an arithmetic number, because the mean of its divisors is an integer number (40809652416).

Almost surely, 2^{1200320111331} is an apocalyptic number.

1200320111331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1200320111331 is a deficient number, since it is larger than the sum of its proper divisors (758543204637).

1200320111331 is a wasteful number, since it uses less digits than its factorization.

1200320111331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3633472 (or 3633469 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1200320111331 its reverse (1331110230021), we get a palindrome (2531430341352).

The spelling of 1200320111331 in words is "one trillion, two hundred billion, three hundred twenty million, one hundred eleven thousand, three hundred thirty-one".