2311320504000 has 224 divisors, whose sum is σ = 7794366667776. Its totient is φ = 603237964800.

The previous prime is 2311320503977. The next prime is 2311320504019. The reversal of 2311320504000 is 4050231132.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103479 + ... + 2152521.

Almost surely, 2^{2311320504000} is an apocalyptic number.

2311320504000 is a gapful number since it is divisible by the number (20) 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 2311320504000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3897183333888).

2311320504000 is an abundant number, since it is smaller than the sum of its proper divisors (5483046163776).

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

2311320504000 is a wasteful number, since it uses less digits than its factorization.

2311320504000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049120 (or 2049100 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 2311320504000 its reverse (4050231132), we get a palindrome (2315370735132).

The spelling of 2311320504000 in words is "two trillion, three hundred eleven billion, three hundred twenty million, five hundred four thousand".