1201313601378 has 96 divisors (see below), whose sum is σ = 2852450295552. Its totient is φ = 362372486400.

The previous prime is 1201313601287. The next prime is 1201313601419. The reversal of 1201313601378 is 8731063131021.

1201313601378 is a `hidden beast` number, since 1 + 2 + 0 + 1 + 3 + 13 + 601 + 37 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65077926 + ... + 65096382.

It is an arithmetic number, because the mean of its divisors is an integer number (29713023912).

Almost surely, 2^{1201313601378} is an apocalyptic number.

1201313601378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201313601378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1426225147776).

1201313601378 is an abundant number, since it is smaller than the sum of its proper divisors (1651136694174).

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

1201313601378 is a wasteful number, since it uses less digits than its factorization.

1201313601378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19960 (or 19957 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

Adding to 1201313601378 its reverse (8731063131021), we get a palindrome (9932376732399).

The spelling of 1201313601378 in words is "one trillion, two hundred one billion, three hundred thirteen million, six hundred one thousand, three hundred seventy-eight".