131223343043 has 32 divisors (see below), whose sum is σ = 160356018816. Its totient is φ = 106099918848.

The previous prime is 131223343033. The next prime is 131223343093. The reversal of 131223343043 is 340343322131.

It is a cyclic number.

It is not a de Polignac number, because 131223343043 - 2⁶ = 131223342979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131223342997 and 131223343015.

It is not an unprimeable number, because it can be changed into a prime (131223343033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160796 + ... + 536937.

It is an arithmetic number, because the mean of its divisors is an integer number (5011125588).

Almost surely, 2^131223343043 is an apocalyptic number.

131223343043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131223343043 is a deficient number, since it is larger than the sum of its proper divisors (29132675773).

131223343043 is a wasteful number, since it uses less digits than its factorization.

131223343043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697823.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 131223343043 its reverse (340343322131), we get a palindrome (471566665174).

The spelling of 131223343043 in words is "one hundred thirty-one billion, two hundred twenty-three million, three hundred forty-three thousand, forty-three".