2231444031400 has 48 divisors (see below), whose sum is σ = 5188644942300. Its totient is φ = 892485127680.

The previous prime is 2231444031391. The next prime is 2231444031409. The reversal of 2231444031400 is 41304441322.

It is an interprime number because it is at equal distance from previous prime (2231444031391) and next prime (2231444031409).

It can be written as a sum of positive squares in 6 ways, for example, as 624122120196 + 1607321911204 = 790014^2 + 1267802^2 .

It is a super-4 number, since 4×2231444031400⁴ (a number of 50 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is not an unprimeable number, because it can be changed into a prime (2231444031409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1373436 + ... + 2519764.

Almost surely, 2^{2231444031400} is an apocalyptic number.

2231444031400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231444031400 is an abundant number, since it is smaller than the sum of its proper divisors (2957200910900).

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

2231444031400 is a wasteful number, since it uses less digits than its factorization.

2231444031400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156078 (or 1156069 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 2231444031400 its reverse (41304441322), we get a palindrome (2272748472722).

The spelling of 2231444031400 in words is "two trillion, two hundred thirty-one billion, four hundred forty-four million, thirty-one thousand, four hundred".