31143022043 has 4 divisors (see below), whose sum is σ = 35592025200. Its totient is φ = 26694018888.

The previous prime is 31143022033. The next prime is 31143022103. The reversal of 31143022043 is 34022034113.

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 31143022043 - 2⁶ = 31143021979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31143022033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2224501568 + ... + 2224501581.

It is an arithmetic number, because the mean of its divisors is an integer number (8898006300).

Almost surely, 2^31143022043 is an apocalyptic number.

31143022043 is a deficient number, since it is larger than the sum of its proper divisors (4449003157).

31143022043 is an equidigital number, since it uses as much as digits as its factorization.

31143022043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4449003156.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 31143022043 its reverse (34022034113), we get a palindrome (65165056156).

The spelling of 31143022043 in words is "thirty-one billion, one hundred forty-three million, twenty-two thousand, forty-three".