31443344311043 has 12 divisors (see below), whose sum is σ = 36619631817912. Its totient is φ = 26919989359200.

The previous prime is 31443344311037. The next prime is 31443344311073. The reversal of 31443344311043 is 34011344334413.

It is not a de Polignac number, because 31443344311043 - 2²⁸ = 31443075875587 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31443344310988 and 31443344311006.

It is not an unprimeable number, because it can be changed into a prime (31443344311073) 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, 374345933 + ... + 374429918.

It is an arithmetic number, because the mean of its divisors is an integer number (3051635984826).

Almost surely, 2^{31443344311043} is an apocalyptic number.

31443344311043 is a deficient number, since it is larger than the sum of its proper divisors (5176287506869).

31443344311043 is an equidigital number, since it uses as much as digits as its factorization.

31443344311043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748776722 (or 748776715 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 38.

Adding to 31443344311043 its reverse (34011344334413), we get a palindrome (65454688645456).

The spelling of 31443344311043 in words is "thirty-one trillion, four hundred forty-three billion, three hundred forty-four million, three hundred eleven thousand, forty-three".