43550344401131 has 4 divisors (see below), whose sum is σ = 43566432451272. Its totient is φ = 43534256350992.

The previous prime is 43550344401079. The next prime is 43550344401133. The reversal of 43550344401131 is 13110444305534.

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 43550344401131 - 2¹⁰ = 43550344400107 is a prime.

It is a super-2 number, since 2×43550344401131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43550344401133) 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, 8044021010 + ... + 8044026423.

It is an arithmetic number, because the mean of its divisors is an integer number (10891608112818).

Almost surely, 2^{43550344401131} is an apocalyptic number.

43550344401131 is a deficient number, since it is larger than the sum of its proper divisors (16088050141).

43550344401131 is a wasteful number, since it uses less digits than its factorization.

43550344401131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16088050140.

The product of its (nonzero) digits is 172800, while the sum is 38.

Adding to 43550344401131 its reverse (13110444305534), we get a palindrome (56660788706665).

The spelling of 43550344401131 in words is "forty-three trillion, five hundred fifty billion, three hundred forty-four million, four hundred one thousand, one hundred thirty-one".