2311440001400 has 96 divisors (see below), whose sum is σ = 5529864816000. Its totient is φ = 897979699200.

The previous prime is 2311440001291. The next prime is 2311440001543. The reversal of 2311440001400 is 41000441132.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1196576 + ... + 2460624.

It is an arithmetic number, because the mean of its divisors is an integer number (57602758500).

Almost surely, 2^{2311440001400} is an apocalyptic number.

2311440001400 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 2311440001400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2764932408000).

2311440001400 is an abundant number, since it is smaller than the sum of its proper divisors (3218424814600).

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

2311440001400 is a wasteful number, since it uses less digits than its factorization.

2311440001400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264329 (or 1264320 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 2311440001400 its reverse (41000441132), we get a palindrome (2352440442532).

The spelling of 2311440001400 in words is "two trillion, three hundred eleven billion, four hundred forty million, one thousand, four hundred".