1201131013320 has 384 divisors, whose sum is σ = 4729735895040. Its totient is φ = 258506588160.

The previous prime is 1201131013309. The next prime is 1201131013337. The reversal of 1201131013320 is 233101311021.

1201131013320 is a `hidden beast` number, since 1 + 20 + 1 + 1 + 310 + 1 + 332 + 0 = 666.

It is a super-2 number, since 2×1201131013320² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1201131013293 and 1201131013302.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2682664 + ... + 3098216.

It is an arithmetic number, because the mean of its divisors is an integer number (12317020560).

Almost surely, 2^{1201131013320} is an apocalyptic number.

1201131013320 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 1201131013320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2364867947520).

1201131013320 is an abundant number, since it is smaller than the sum of its proper divisors (3528604881720).

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

1201131013320 is a wasteful number, since it uses less digits than its factorization.

1201131013320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415645 (or 415638 counting only the distinct ones).

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

Adding to 1201131013320 its reverse (233101311021), we get a palindrome (1434232324341).

The spelling of 1201131013320 in words is "one trillion, two hundred one billion, one hundred thirty-one million, thirteen thousand, three hundred twenty".