3081261120000 has 1200 divisors, whose sum is σ = 12323000777472. Its totient is φ = 681246720000.

The previous prime is 3081261119977. The next prime is 3081261120019. The reversal of 3081261120000 is 211621803.

It is a tau number, because it is divible by the number of its divisors (1200).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1458238944 + ... + 1458241056.

Almost surely, 2^{3081261120000} is an apocalyptic number.

3081261120000 is a gapful number since it is divisible by the number (30) 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 3081261120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6161500388736).

3081261120000 is an abundant number, since it is smaller than the sum of its proper divisors (9241739657472).

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

3081261120000 is an equidigital number, since it uses as much as digits as its factorization.

3081261120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2199 (or 2161 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 3081261120000 its reverse (211621803), we get a palindrome (3081472741803).

The spelling of 3081261120000 in words is "three trillion, eighty-one billion, two hundred sixty-one million, one hundred twenty thousand".