2144250431311 has 4 divisors (see below), whose sum is σ = 2146314196000. Its totient is φ = 2142186666624.

The previous prime is 2144250431303. The next prime is 2144250431333. The reversal of 2144250431311 is 1131340524412.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2144250431311 - 2³ = 2144250431303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144250437311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1031880786 + ... + 1031882863.

It is an arithmetic number, because the mean of its divisors is an integer number (536578549000).

Almost surely, 2^{2144250431311} is an apocalyptic number.

2144250431311 is a deficient number, since it is larger than the sum of its proper divisors (2063764689).

2144250431311 is a wasteful number, since it uses less digits than its factorization.

2144250431311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063764688.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 2144250431311 its reverse (1131340524412), we get a palindrome (3275590955723).

The spelling of 2144250431311 in words is "two trillion, one hundred forty-four billion, two hundred fifty million, four hundred thirty-one thousand, three hundred eleven".